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ECE480 Notes - June 23rd 2008 LESSON 1 Overview of Objects...

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June 23 rd 2008 LESSON 1 : Overview of Objects Object Oriented Design 1. Encapsulation: Using private data a. (i.e. information is Private, protected, doesn’t change) 2. Inheritance: Base (origination/parent) & Derive (children) a. Inherit properties from parents and also contains more properties b. (ie. constructor) c. Foundation and base of writing UML i. Bring down classes, set public and private, drag drop code, and regenerate on your choosing 3. Polymorphism: Greek definition is many forms/many changes a. (ie. overloading function, template, such as overwriting data types) b. Pure virtual function: Abstract function (ie. virtual function = 0) Example class class_name public: methods (operations , functions) member functions private: data members, attributes UML : Uses the terms operations, attributes Rational Rose Together Soft C++, Visual, C# June 24 th 2008 LESSON 2 : Environmental Model Select Project Name How do we start a project? - System (draw a cloud, system includes a cloud) - System can have multiple actors/events - Actor (person/object) -> Event (person/object activating robot) -> Cloud (robot) o Actors Initiating: someone who creates an event, draws an arrow to cloud (left Participating: someone who’s in background, no arrow to cloud (right o Event Actors cause an event to occur Events can be internal (within a cloud) o Cloud In essence, the project
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LESSON 3 : System Development Life Cycle SDLC: System Development Life Cycle - Systems can be software or hardware - Parts of a System: contains multiple components o Model Prototypes Diagrams Supporting Documents o Subsystem Hardware Software Processes (Life Cycle: Birth to Maturity) NOTE:These 5 steps incorporate the topics for the next 5 weeks Testing is embedded in every process stage 1. Planning (Requirements) a. Narrative Description: describe what your system will do (one paragraph) b. Feasibility: constraints/limitations i. Budget limitations ii. Time limitations c. Steps d. System Functions: ie. System does something, verb words e. System Attributes: Can be a function, but with properties ie. Recording in 15 min f. Environmental Diagram g. Prototype h. Resource Allocation Management 2. Analysis a. Process of determining detailed requirements in the form of a model (UML) b. System Analyst: Someone who looks at the planning c. Diagrams i. Conceptual Diagram: Graphical representation of system, shows objects and relationship (multiple) ii. Sequence Diagram: Graphical representation of system, shows dynamics of system (multiple) d. Contract i. Pre-Conditions: Way it exists now (before) ii. Post-Conditions: Results or changes (after) iii. State Diagram 3. Design a. Drawing blueprints of a system, schematic, diagrams b. Diagrams i. Use Case (Interaction) Diagram: Representation of dynamics in system ii. Class Diagram: Representation of statics in system 4. Implementation (Construction) a. Programmers b. Computer Engineers c. Construction
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d. Integration e. Database f. Networks g. Hardware Configuration 5. Delivery (Maintenance, Training, Documents, etc) a. Maintenance: assistance, revision, versioning, update b. Training c.
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