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- This paper proposes a low cost method for the esti-mation of blood parameters using photo-plethysmography (PPG) technique. Data is obtained non-invasively the fingertip, which is processed to estimate the heart rate and the hemoglobin concentration.
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- Software Development Activities Methods and Methodologies software engineering is different other engineering disciplines It is constrained by political forces-Software Development Activities Methods and Methodologies software engineering is
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- hierarchical representation external and internal interfaces design and implementation foundation no focus on constraints or validation hueristic and notions point of view notation modeling approach
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- Software costs often dominate system costs. The costs of software on a PC are often greater than the hardware cost. Software costs more to maintain than it does to develop. Software engineering is concerned with cost-effective software developmen
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- Collects data a blood sugar sensor and calculates the amount of insulin required to be injected. Calculation based on the rate of change of blood sugar levels. Sends signals to a micro-pump to deliver the correct dose of insulin. Safety-critica
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- hueristics and notions point of view notation modeling approach hierarchical representation external and internal interfaces design and implementation foundation no focus on constraints or validation
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- Testing is a process of executing a program with the intent of finding an error. A good test case is one that has a high probability of finding an as yet undiscovered error. A successful test is one that uncovers an as yet undiscovered error.
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- Architecture focuses on non-functional requirements (“cross-cutting concerns”) and decomposition of functional requirements Design focuses on implementing the functional requirements
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- Initiating actor (also called primary actor or “user”): initiates the use case to realize a goal Participating actor (also called secondary actor): participates in the use case but does not initiate it: Supporting actor: helps the system-to-be to
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- Requirements analysis determined how users will interact with system-to-be (external behavior) Domain modeling determines how elements of system-to-be interact (internal behavior) to produce the external behavior Knowledge of how system-to-be is
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- Short communication chains between the objects Balanced workload across the objects Low degree of connectivity (associations) among the objects Expert Doer Principle: that who knows should do the task High Cohesion Principle: do not take on t
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- Dual role of software Software questions haven t changed A definition of software Differences between hardware and software Changing nature of software Dealing with legacy software Software myths