Software Development Life Cycle Implementation Quiz

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Questions and Answers

What is included in the implementation activities within the SDLC?

Programming and testing activities (correct)

System deployment and user training

Market analysis and product design

System programming and user feedback collection

Which of the following is NOT a type of software test typically used during the implementation phase?

User acceptance testing

Integration testing

Market testing (correct)

Unit testing

What aspect of system deployment involves controlling changes and maintaining system integrity?

System testing

Data conversion

User training

Configuration management (correct)

Which of the following benefits does proper change management provide during system implementation?

Ensures alignment with business objectives Signup and view all the answers

What is the primary purpose of user support requirements in operational systems?

To provide ongoing assistance to users Signup and view all the answers

What is the primary purpose of testing in software development?

To examine operational characteristics and identify defects Signup and view all the answers

Which of the following describes a test case?

A formal description including a starting state, events, and expected outcomes. Signup and view all the answers

What is the role of a 'driver' in unit testing?

To simulate the behavior of a method that calls another method. Signup and view all the answers

What characterizes an integration test?

It tests the interaction of multiple methods, classes, or components. Signup and view all the answers

Which statement about stubs in unit testing is true?

Stubs simulate methods that have not yet been implemented. Signup and view all the answers

What type of data does 'test data' refer to?

Sets of starting states and events used in test cases. Signup and view all the answers

What is an example of an issue identified during integration testing?

A method passing an unexpected parameter value. Signup and view all the answers

What must a test case be defined based on?

Well understood functional and non-functional requirements. Signup and view all the answers

What primarily complicates integration testing in object-oriented software?

The presence of interacting objects within the program Signup and view all the answers

What can cause run-time exceptions in an object-oriented program?

Conflicting resource needs such as 'out of memory' Signup and view all the answers

How does state retention in objects affect method calls?

It allows for internal state changes to influence the response to method calls. Signup and view all the answers

What is a key characteristic of method calling in object-oriented programming?

The specific method to be executed is determined dynamically at run time. Signup and view all the answers

Which situation is an example of unexpected state interactions?

An OnlineCart class behaves incorrectly only with one specific Customer object state Signup and view all the answers

What is the primary purpose of usability testing?

To evaluate if a system meets user requirements Signup and view all the answers

Which type of testing focuses on functional requirements and can be conducted in each iteration?

Usability testing Signup and view all the answers

What does a build and smoke test involve?

Compiling and linking the system and running basic tests Signup and view all the answers

What is assessed during performance or stress testing?

Time-based performance criteria Signup and view all the answers

When is user acceptance testing typically performed in the project cycle?

Near the end of the project or later iterations Signup and view all the answers

What is meant by 'response time' in the context of performance testing?

The maximum allowable time for software to respond Signup and view all the answers

Which of the following is NOT a component evaluated in usability testing?

System integration Signup and view all the answers

Which kind of test is a user acceptance test classified as?

A formal assessment of system functionality Signup and view all the answers

Which data sources can be used to obtain data needed at system startup?

Manual records Signup and view all the answers

What is the primary focus of training for end users?

Hands-on use of specific business processes Signup and view all the answers

Which type of development order implements input modules first?

Input-process-output (IPO) development Signup and view all the answers

What is the purpose of source code control?

To track and control changes to source code files Signup and view all the answers

Which type of testing is not considered deployment?

Unit tests Signup and view all the answers

What is emphasized in training for system operators?

Self-study and hands-on practice Signup and view all the answers

What is one method used in top-down development for testing?

Implementing stubs Signup and view all the answers

Which technique is not associated with bottom-up development?

Starting with high-level modules Signup and view all the answers

What is essential for a successful operational system?

A fully populated database Signup and view all the answers

What is a key characteristic of direct deployment?

Quickly makes the new system operational and turns off the old system. Signup and view all the answers

Which deployment approach incurs the highest operational costs?

Parallel deployment Signup and view all the answers

What is the primary goal of a maintenance release?

To update the system with bug fixes and minor changes. Signup and view all the answers

During which phase is a beta version tested by end users?

Beta version phase Signup and view all the answers

What is the first step in implementing a change to an operational system?

Identify what parts of the system must be changed. Signup and view all the answers

Which approach to deployment allows for a smooth transition by installing the new system in steps?

Phased deployment Signup and view all the answers

What challenges might arise from parallel deployment?

Incurred costs of maintaining two systems simultaneously. Signup and view all the answers

What is the purpose of change and version control?

To handle complexity in testing and supporting multiple software versions. Signup and view all the answers

Which of the following best describes an alpha version?

A test version that is incomplete but ready for rigorous testing. Signup and view all the answers

What is a significant downside of direct deployment?

Carries a higher risk of operational failures. Signup and view all the answers

Study Notes

Systems Analysis and Design in a Changing World - Topic 7a

The chapter discusses the final two core development processes in the Systems Development Life Cycle (SDLC): Implementation and Deployment activities.
Implementation involves programming, testing software, identifying test cases, and integrating components.
Deployment includes system tests, data conversion, training, production environment setup, and deploying the solution.
Various software testing types are discussed, including unit testing, integration testing, usability testing system and stress testing, and user acceptance testing.
The importance of configuration management, change management, and source code control is highlighted for the implementation, testing, and deployment of a system.
Different approaches to data conversion and system deployment are categorized and described with their respective advantages and disadvantages.
Training and user support requirements for new and operational systems are described.

Making the System Operational - Topic 7a

This topic focuses on making a software system functional.
The process is broken up into several important aspects
Testing various aspects of modules and components before integrating them into the full system.
Planning and Managing Implementation, Testing, and Deployment include methodologies and tools used for effective implementation.
Putting It All Together - RMO Revisited discusses specific contexts, challenges, and decisions made in a real-world scenario.

Topic 7a Outline

Testing activities are examined.
Various deployment activities are discussed.
The aspects of planning and managing implementation, testing, and deployment are evaluated.
Revisiting the RMO (company) context and how comprehensive planning allows system enhancements.

Learning Outcomes

Students will learn to describe implementation and deployment activities.
Students will describe and understand various software testing types and how they are used.
Students will gain insights into configuration management, change management, and source code control.
Various approaches to data conversion and system deployment along with their advantages and disadvantages.
Training and user support requirements for new and operational systems.

Overview

The text has covered the first four stages of the core development processes in the SDLC.
This chapter will cover implementation and deployment activities.
Implementation activities include programming and testing, converting data, conducting training, configuring a production environment, and deploying the solution.
Deployment activities are described in detail from iterative processes to core process.

Implementation and Deployment Activities

A clear categorization of implementation activities and deployment activities is provided.
The Core processes (Identify, Plan etc.) are described step-by-step.
Iterations in development processes are shown (1 to 6 iterations).

Test Types

Different types of software testing (unit, integration, usability, system, and stress) are categorized, described, and their operational characteristics are explained.

Testing Concepts

The definition of testing as an examination to identify operational characteristics and potential defects.
The definition of a test case, including start state, events, and expected response or non-functional requirements.
The concepts of test data are described, encompassing conditions and events.

Unit Testing

A definition of unit tests, which are examinations of individual components before integration.
Driver methods and stub methods for testing are defined.
Examples of driver methods and stub modules are presented.

Integration Testing

The process of testing multiple components or modules is discussed.
Potential failures - interface incompatibility, parameter issues, run-time exceptions, and unexpected state interactions.

Usability Testing

A test to evaluate whether a method, class, subsystem, or system meets user requirements.
Most common type evaluated on functional requirements—use case by use case.
Usability tests consider learning ease and ease of use and whether results match actual requirements.

System, Performance, and Stress Testing

An understanding of a system test of an entire system or subsystem is discussed.
How daily or regular testing helps detect potential issues.
Different types of system testing are covered, including build/smoke tests.
Testing for performance and stress with criteria like response time and throughput.

User Acceptance Testing

A system test to verify the system meets user requirements.
These are usually toward the end of projects, sometimes after several iterations.

Deployment Activities (Detailed)

A summary of deployment activities, including system and stress tests, user acceptance tests, data conversion, training, setting up a production environment, and deploying the solution.
Iterations in the deployment process are shown.

Converting and Initializing Data

The need for a complete database is explained.
Data sources for populating the database, including existing files, manual records, and other systems, are identified.
A diagram presents a complex data conversion process flow.

Training Users

Training is needed for end users and system operators.
Hands-on training for specific business processes like order entry, inventory control, and accounting is crucial.
Training should address various skill levels with practice exercises, question-and-answer sessions, and tutorials.
Training can be less formal for system operators who aren't end users, while experienced operators might learn through self-study.

Configuring the Production Environment

The configuration of the production environment, depicting the different components required (servers, routers, firewalls, etc.) and their necessary placement within an IT infrastructure.

Planning and Managing Implementation, Testing, and Deployment - Development Order

IPO (Input, Process, Output) development order.
Top-down and bottom-up development orders, including stub and driver methods for testing.

Planning and Managing Implementation, Testing, and Deployment - Source Code Control

An automated tool for tracking source code files and controlling changes to them.
How a programmer uses read-only and read/write modes for accessing and modifying code files.
The necessity for only one programmer to access read/write mode in code control systems.

Planning and Managing Implementation, Testing, and Deployment - Phased Deployment

Describes a deployment method that installs a new system in phases, enabling gradual and controlled operational transition.
Lists different approaches, including direct, parallel, and phased deployment.

Planning and Managing Implementation, Testing, and Deployment - RMO CSMS System Revisited

The RMO decided to replace its old CSMS (Computer System Management System) due to infrastructure limitations and software obsolescence.
The decision to replace was driven by factors including infrastructure limitations, age of the existing system, and an external vendor hosting.
Phased deployment and data conversion were identified to minimize risk as well as database development and data migration before deployment.
Order fulfillment, sales subsystem, documentation, and training are emphasized as key development components.

Planning and Managing Implementation, Testing, and Deployment - Iteration Planning Parts 1 and 2

Describes the steps in planning and managing implementation, testing, and deployment, including essential use cases, class diagrams, and data migration.
Iteration plans are shown that include processes such as defining the business models, establishing the environment, and making any necessary structural changes.
Testing, including usability, stress, performance, and acceptance testing, is shown as integral parts of the stages, showing the various steps involving rigorous product verification.

Summary

Implementation and deployment are complex due to dependencies between activities
Implementation activities involve tasks like programming, unit testing, and component integration.
Deployment involves tests (system, stress, acceptance), data conversion, training, production configuration, and solution deployment.
Testing is critical and includes unit, integration, usability, system/performance/stress, and acceptance testing.
Program development includes a complex trade-off involving resources, time, and the desire for prior error identification.
Configuration and change management track modifications in models and software for different versions.
Various deployment options like direct, parallel, and phased deployment were described.
Implementing change activities include identifying affected system components, securing resources, scheduling activities, and developing test criteria.
Supporting a system through multiple versions using tools and processes (Change and Version Control).
Describing different versions of a system (Alpha, Beta, and Production/Release).
Maintenance releases for bug fixes and changes in existing software.

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Description

Test your knowledge on the implementation activities within the Software Development Life Cycle (SDLC). This quiz covers various topics, including software testing types, change management benefits, user support requirements, and integration testing. Perfect for software developers and project managers alike!