Author Archives: Evelina Rosser

HOW CAN BLOCKCHAIN TECHNOLOGY IMPROVE THE MANAGEMENT OF SENSITIVE HEALTH RECORDS

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Blockchain technology has the potential to significantly improve how sensitive health records are managed and securely shared across different healthcare providers and organizations. Some of the key ways blockchain can help are:

Improved Security and Privacy – One of the biggest challenges with current health information systems is ensuring privacy and security of sensitive patient records. With blockchain, health data is encrypted and stored across distributed nodes of a network making it virtually impossible to hack or alter without detection. Only authorized parties have access to view encrypted records through digital signatures. This prevents unauthorized access and leakage of confidential information.

Transparency of Access – With blockchain, a clear audit trail is created each time a record is accessed, by whom, when and where. This transparency builds trust that only approved parties are viewing necessary records for legitimate treatment purposes. Patients have full visibility into who has viewed their records. This discourages improper access attempts and assuages privacy concerns.

Interoperability Across Systems – Currently, health records are often fragmented across different proprietary databases of separate providers and payers. With blockchain, a unified network is created where authorized entities can easily and securely share updated patient medical records and health information in real-time. Irrespective of where treatment is received, complete health history stays available with consented access. This streamlines care coordination and improves patient outcomes.

Immutability and Auditability – Once data is entered on a blockchain ledger, it cannot be altered or erased without confirmation from the network. This ensures the integrity of health records is maintained over long periods of time. Any changes are clearly traceable through an immutable audit log. Tampering or falsification of records becomes practically impossible. Lost or destroyed paper records can be replaced with permanent digital records on blockchain.

Patient Ownership and Control – With blockchain, individuals fully own and control who can access their health data. Consent mechanisms allow patients to selectively grant permission to different parties like doctors, insurers, researchers etc on an as-needed basis. Patients stay firmly in charge of their personal information and how it is used. This self-sovereignty resolves current problems related to lack of individual control over records.

Streamlined Billing and Payments – Sensitive claims data involving treatments, procedures, costs can be recorded on blockchain by various stakeholders like providers, payers, bill processing firms etc. Verified transactions enable seamless electronic prior authorizations, real-time eligibility checks, automated claims adjudication and payments. This greatly boosts operational efficiencies and removes irritants in the current payment system.

Reduced Healthcare Costs – Various inefficiencies in the current fragmented healthcare data landscape lead to estimated wastage of billions annually just in the US because of redundant tests, avoidable complications, medical errors and fraud. Blockchain can help address these issues to a large extent. Streamlined and accurate electronic health records readily available across the continuum of care can yield significant cost savings over the long run for governments, providers and patients.

Facilitating Research and Innovation – De-identified patient data recorded on permissioned blockchains allows for controlled data sharing with research organizations. Aggregated insights gained from big health data analysis on conditions, treatments, outcomes etc can accelerate medical discoveries and new therapy development. Mobile health apps and devices can also integrate with blockchain networks to generate real world evidence for decision making and new protocols.

Blockchain offers a robust technological solution to many long standing healthcare challenges around data privacy, security, availability and overall inefficiencies. By enabling transparency, control, automation and trust – it can reshape how sensitive health records are managed, accessed and used to the benefit of all stakeholders especially patients in need of care. With proper design and governance, blockchain clearly holds enormous potential to revolutionize healthcare systems worldwide through its distributed ledger capabilities.

WHAT WERE THE SPECIFIC CHALLENGES FACED DURING THE TESTING PHASE OF THE SMART FARM SYSTEM

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One of the major challenges faced during the testing phase of the smart farm system was accurately detecting crops and differentiating between weed and crop plants in real-time using computer vision and image recognition algorithms. The crops and weeds often looked very similar, especially at an early growth stage. Plant shapes, sizes, colors and textures could vary significantly based on maturity levels, growing conditions, variety types etc. This posed difficulties for the machine learning models to recognize and classify plants with high accuracy straight from images and video frames.

The models sometimes misclassified weed plants as crops and vice versa, resulting in incorrect spraying or harvesting actions. Environmental factors like lighting conditions, shadows, foliage density further complicated detection and recognition. Tests had to be conducted across different parts of the day, weather and seasonal changes to make the models more robust. Labelling the massive training datasets with meticulous human supervision was a laborious task. Model performance plateaued multiple times requiring algorithm optimizations and addition of more training examples.

Similar challenges were faced in detecting pests, diseases and other farm attributes using computer vision and sensors. Factors like occlusion, variable camera angles, pixilation due to distance, pests hiding in foliage etc decreased detection precision. Sensor readings were sometimes inconsistent due to equipment errors, interference from external signals or insufficient calibration.

Integrating and testing the autonomous equipment like agricultural drones, robots and machinery in real farm conditions against the expected tasks was complex. Unpredictable scenarios affected task completion rates and reliability. Harsh weather ruined tests, equipment malfunctions halted progress. Site maps had to be revised many times to accommodate new hazards and coordinate vehicular movement safely around workers, structures and other dynamic on-field elements. -machine collaboration required smooth communication between diverse subsystems using disparate protocols. Testing the orchestration of real-time data exchange, action prioritization, exception handling across heterogeneous hardware and ensuring seamless cooperation was a huge challenge. Debugging integration issues took a significant effort. Deploying edge computing capabilities on resource constrained farm equipment for localized decision making added to the complexity.

Cybersecurity vulnerabilities had to be identified and fixed through rigorous penetration testing. Solar outages, transmission line interruptions caused glitches requiring robust error handling and backup energy strategies. Energy demands for active computer vision, machine learning and large-scale data communication were difficult to optimize within equipment power budgets and endure high field workloads.

Software controls governing autonomous farm operations had to pass stringent safety certifications involving failure mode analysis and product liability evaluations. Subjecting the system to hypothetic emergency scenarios validated safe shutdown, fail safe and emergency stop capabilities. Testing autonomous navigation in real unpredictable open fields against human and animal interactions was challenging.

Extensive stakeholder feedback was gathered through demonstration events and focus groups. User interface designs underwent several rounds of usability testing to improve intuitiveness, learnability and address accessibility concerns. Training protocols were evaluated to optimize worker adoption rates. Data governance aspects underwent legal and ethical assessments.

The testing of this complex integrated smart farm system spanned over two years due to a myriad of technical, operational, safety, integration, collaboration and social challenges across computer vision, robotics, IoT, automation and agronomy domains. It required dedicated multidisciplinary teams, flexible plans, sustained effort and innovation to methodically overcome each challenge, iterate designs, enhance reliability and validate all envisioned smart farm capabilities and value propositions before commercial deployment.

HOW CAN PROJECT MANAGERS EFFECTIVELY TRACK PROGRESS AND IDENTIFY VARIANCES FROM THE PLAN

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Project managers have numerous tools at their disposal to effectively track project progress and identify any variances from the project plan. Some of the key methods include using a work breakdown structure, developing a schedule with milestones, collecting status reports, analyzing earned value metrics, and issue tracking.

A work breakdown structure (WBS) is a deliverable-oriented decomposition of the work to be executed by the project team to accomplish the project objectives and create the required deliverables. The WBS breaks down the project work into smaller, more manageable components called deliverables or work packages. These may include major project phases, work streams, specific tasks, or subtasks. The WBS provides the framework for detailed cost estimating and budgeting, controls progress, and guides schedule development. Having a detailed WBS makes it easier for the project manager to determine the work completed versus remaining.

Creating a project schedule with defined milestones is essential for tracking progress. Milestones represent significant points or major accomplishments in the project such as key deliverables, phase completions, or decisions. Schedules should include early start and finish dates, late start and finish dates, and durations for each task or work package in the WBS. Tracking actual progress against this schedule enables the project manager to quickly see if work is ahead of schedule, on schedule, or delayed. Milestone tracking in particular provides easy visibility into the overall status of the project. Any variances can then be identified and corrective actions taken.

Collecting regular status reports from team members is another important method for measuring progress. These reports provide updates on the work completed during a specific period as well as work planned for the next period. Issues encountered, decisions required, and risks identified are also typically included. While self-reported status poses a risk of accuracy, project managers can manage this risk by also collecting objectively verifiable data like completed inspection and test records or delivered work products. The status reports are analyzed to measure progress, calculate schedule and cost performance, track issues, and determine the likelihood of meeting deadline and budget commitments. Significant variances or missed objectives are then evaluated.

Earned value management (EVM) is a technique that allows measurement of project progress in terms of planned cost and timephased budgets assigned to scheduled work. It involves establishing an integrated project baseline for scope, schedule, and cost along with measurement of the actual work performed. By comparing the budgeted cost of work performed (BCWP) to the budgeted cost of work scheduled (BCWS), the project manager can compute schedule variance (SV) and cost variance (CV). These values indicate the efficiency of the project and whether work is ahead or behind schedule according to the planned budget and determine if corrective actions need to be implemented to get back on track.

An important monitoring practice involves tracking all issues, risks, changes, decisions and other elements that may impact project objectives in an issues log. This information is needed to determine root causes of any cost overruns or schedule delays and what responded is required. Maintaining a standardized issues tracking process makes it easy to analyze status, prioritize according to importance and urgency, and get resolution from appropriate stakeholders or managers. The issues log is essentially a project manager’s early warning system that identifies challenges, barriers or problem areas requiring attention before they undermine the integrity of the project plan and its successful execution in terms of time, budget, quality and scope.

There are many established practices project managers can employ to systematically measure performance against the project baseline, determine if the plan is being correctly followed, and catch signs of potential variances early. This helps them make timely adjustments as needed through corrective actions, management initiatives or plan revisions. Close progress monitoring also assures stakeholders that the project remains on track or that issues are being appropriately handled. These approaches support a project manager’s ability to successfully deliver projects according to their approved scope, schedule and cost constraints.

WHAT ARE SOME OTHER BENEFITS OF COMPLETING A CAPSTONE PROJECT AT GREAT LEARNING

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Real-world industry experience: One of the biggest benefits of doing a capstone project is that students get to work on something that simulates a real-world work environment. The capstone project involves doing extensive research, analyzing the problem, designing a solution, developing a prototype or minimum viable product, testing it, and then delivering a presentation or report on the overall project. This gives students an opportunity to gain real industry experience by addressing an actual business problem or opportunity. It helps strengthen their problem-solving, analytical, collaborative and presentation skills which are much needed for the job market.

Application of course concepts: The capstone project allows students to apply the concepts, techniques and methodologies they have learnt throughout their program/courses. It provides a platform to roll up their sleeves and synthesize all the knowledge they gained into one complex, real-world project. By applying data analytics, programming, design thinking or other concepts to solve an industry problem end-to-end, it reinforces their learning and tests how well they can utilize their learnings. This also helps students gain deeper conceptual understanding of their program.

Project management experience: Doing a capstone usually involves working on a complex project over the span of few months. It gives students exposure to various aspects of real-life project management such as creating project proposals, developing work plans, tracking project milestones, coordinating with multiple stakeholders, presenting progress updates, and delivering the final project on time while ensuring quality. Through this, they learn critical skills like goal setting, budgeting time, handling multiple tasks, prioritizing work, resolving issues and meeting deadlines which are highly valued by employers.

Showcase of skills to employers: The capstone project provides students a practical portfolio piece that demonstrates their abilities, thought process and potential to future employers. The final report or prototype acts as a showcase of a real end-to-end project undertaken. This gives employers a sense of the quality of work students can produce and their suitability for roles. It also helps students network with industry mentors and references which could aid their job search. The project experience becomes a strong credential that differentiates students from others during interviews and on resumes.

Connection to the industry: One of the most valuable aspects is the exposure to the industry that students gain through the capstone. They are able to forge connections with potential employers or clients as project partners who may later help them find relevant work opportunities. Students also get access to industry best practices, case studies and expert advice from their mentors. They learn about current trends, pain points, desired skillsets and how to structure solutions as per the needs in their domain of study. This gives them a head start in their career.

Soft skill development: Working on a long-term capstone involves immense collaboration with cross-functional teams and stakeholders. It aids development of versatile soft skills like logical reasoning, critical thinking, problem-solving, leadership, effective communication, ability to learn independently, adaptability to change and more. Strong soft skills are as important as technical abilities to be successful in careers. These skills gained through real-world capstone simulations are highly valued by recruiters.

Confidence and motivation boost: Successfully delivering a complex capstone project gives students confidence that they are workforce-ready and can take on significant responsibilities after college. It motivates them to do bigger and better things in their careers. Students experience a sense of pride and accomplishment from seeing their hard work come to fruition. The confidence and motivation they gain to continuously improve themselves propels them further in their journey ahead.

A capstone project provides students a practical, industry-focused learning experience to apply their classroom knowledge to real problems. It helps develop vital technical and soft skills that are highly sought by employers. The experience also aids career readiness by allowing students to build industry connections and demonstrate their capabilities through a portfolio project. It acts as an excellent stepping stone for students in their professional journey ahead.

HOW CAN SUSTAINABLE ARCHITECTURE CONTRIBUTE TO REDUCING THE CARBON FOOTPRINT OF BUILDINGS

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The first way sustainable design reduces carbon emissions is by considering a building’s orientation and form. Optimizing a structure’s positioning and shaping based on climate and site conditions allows architects to better control factors like lighting, heating and cooling needs. For example, in northern latitudes buildings are often elongated on an east-west axis to maximize southern exposure. This passive solar strategy means interior spaces require less electric lighting and heating fuel. Taller, narrow floorplates also increase natural daylighting and ventilation potential compared to wide, short designs.

Material selection is another important facet of sustainable architecture. Choosing building materials and products sourced locally and manufactured with less energy-intensive processes reduces the upfront carbon from transportation and fabrication. Whenever feasible, sustainable architects specify renewable and recycled materials like bamboo, salvaged wood, engineered lumber and concrete with fly ash. These building components sequester carbon already emitted and lessen demand for new raw material extraction and processing. Specifying materials’ lifespan and adaptability also enables future reuse or recycling to further decrease embodied carbon over time.

Construction techniques play a role as well, with sustainable builders employing strategies like off-site fabrication, modular construction and strategies to minimize waste production on job sites. For example, prefabricating large sections of a building in a controlled factory setting uses energy more efficiently than numerous trades working simultaneously in the field. Modular construction has a smaller on-site footprint and enables rapid assembly with minimal material waste. Contractors can also implement techniques like metal framing instead of masonry, which requires less embodied carbon and labor for installation.

During a building’s useful life, its operations are a major determinant of ongoing carbon emissions. Therefore, sustainable architects integrate a host of strategies to dramatically reduce fossil fuel use for space conditioning, lighting, hot water and appliances. High-performance building enclosures with superior insulation, triple-glazed windows, air barriers and thermal breaks greatly curb heat transfer and air leakage. Systems are specified with the latest energy-saving technologies like variable refrigerant flow HVAC, LED lighting, solar hot water and ground-source heat pumps. Smart controls and submetering encourage efficient behavior and allow tweaking equipment for peak performance. On-site renewable energy generation such as solar panels or small wind turbines can provide a portion of electricity needs as well. Combined, these strategies can diminish operational carbon 80-90% compared to conventional buildings.

End-of-life deconstruction also plays into sustainable architecture’s carbon math. Specifying structures, components and furnishings designed for disassembly and material separation at demolition aids future reuse, remanufacturing or recycling. This “cradle-to-cradle” approach extends product lifecycles and loops materials back into continuous cycles, avoiding one-way trips to landfills that waste their sequestered carbon. Architects implementing deconstruction planning see buildings not as endpoints, but as ongoing material banks whose stocks conserve embedded energy and emissions. Combined with the above strategies touching siting, materials, construction and operations, sustainable design’s holistic perspective can reduce overall building lifecycle carbon footprint by 60-70% or more relative to standard practices.

Through innovative solutions applied at each project phase from pre-design to deconstruction, sustainable architecture makes enormous contributions to mitigating climate change by curbing emissions from the construction sector. With its integrated, systems-thinking approach optimizing every aspect of building lifecycles, this growing practice exemplifies how good design can yield both environmental and economic benefits. As sustainable architecture’s carbon-cutting methods become standardized, the built environment’s climate impact will diminish substantially—but only with committed support and implementation of its proven techniques. Continued research and advocacy will also uncover additional paths to constructing with minimal emissions well into the future.