Perfective maintenance - Study guides, Class notes & Summaries

ICT2621 2023 Assignment 3 solution Questions: Question 1 NB: When drawing data flow diagrams (DFDs), use the Gane and Sarson symbols/notation set. 1.1 Draw, name and describe the four symbols used in a data flow diagram (DFD). You may use a table to present your answer. (6) 1.2 Briefly describe the following with respect to DFDs: 1.2.1 Levelling(2) 1.2.2 Balancing(2) 1.2.3 Data dictionary(2)1.3 Draw a diagram of an example of each of the following showing the process, and the input(s...

INF3703 databases SUMMARY 2022/2023 Database Design 9-1 The Information System [p.440] A database is a carefully designed and constructed repository of facts. The database is part of a large whole known as an Information System, which provides for data collection, storage, transformation, and retrieval. Systems analysis is the process that establishes the need for an information system and its extent. The process of creating an information system is known as systems development. The per...

What is software engineering? a discipline whose aim is the production of fault-free software, delivered on time and within budget, that satisfies the client's needs. The software must be easy to modify when the user's needs change What is classical software engineering life cycle model? 1. requirements 2. analysis/specification 3. design phase 4. implementation phase 5. post-delievery phase 6. retirement what is modern view of maintenance software undergoes modifications to code and...

Adaptive Maintenance - ANSWER Changes to evolve its functionality to meet business needs. Urgency - depends, Initial Activity - little, Value-adding- much Corrective Maintenance - ANSWER Repairing defects. Urgency - very high, initial activity - pervasive, value-adding - little Perfective Maintenance - ANSWER Performance or usability tuning. Urgency - low, initial activity - some, value-adding - cost savings Preventive Maintenance - ANSWER Changes to reduce future failures. Urgency - l...

Definition of Software Engineering correct answersA discipline whose aim is the production of fault-free software, delivered on time and within budget, that satisfies the client's needs. Furthermore, the software must be easy to modify when the users need change. Stages of the Classical Waterfall Model correct answers1.) Requirements phase 2.) Analysis (Specification) phase 3.) Design phase 4.) Implementation phase 5.) Postdelivery maintenance 6.) Retirement Temporal Maintenance corr...

Software Engineering - Answer-a discipline whose aim is the production of fault-free software, delivered on time and within budget, that satisfies the client's needs Steps for Waterfall Life Cycle (Classical Model) - Answer-1. Requirements Phase 2. Analysis (specification) phase 3. Design phase 4. Implementation phase 5. Postdelivery maintenance 6. Retirement Requirements Phase - Answer-- Explores concept - Get the client's requirements Analysis (specification) Phase - Answer-- Analy...

BCIS 4610 Ch 14. Questions with complete solution 2024 BCIS 4610 Ch 14 Maintenance - correct answer Changes made to a system to fix ot enhance its functionality Corrective Maintenance - correct answer Changes made to a system to repair flaws on its design, coding, or implementation Adaptive maintenance - correct answer Changes made to a system to evolve its functionality to changing business needs to technologies perfective maintenance - correct answer Changes made to a syst...

CAHIMS 6.1 All Answers Correct Which is NOT an important step in creating a testing strategy? a. Identify testing environment. b. Create test scenarios and scripts. c. Identify participants. d. Identify required equipment. B The procedure for sign-off for testing activities identifies the person who will manage defects in the project. a. True b. False B End user testing is best suited for less-experienced staff and should represent a cross-section of the end-user en...

adaptive maintenance Adds enhancements to an operational system and makes the system easier to use applications programmer Works on new systems development and maintenance avoidance Eliminates risk by adding protective safeguards backup Copying data at prescribed intervals, or continuously baseline Formal reference point that measures system characteristics at a specific time busy Metric that measures the time that a given resource is unavailable c...

_________ maintenance diagnoses and fixes errors in an operational system. a. Corrective b. Adaptive c. Perfective d. Preventive - a. Corrective ___________ deliver a software application or access to an application over the internet on a subscription basis. a. Application Services Providers b. internet business services c. Offshore outsourcing d. Internet protocols - a. Application service providers ____________ is an example of an expert system used in healthcare. a. Registration ...