Pearson eText for Software Engineering -- Instant Access (Pearson+)
Pearson eText for Software Engineering -- Instant Access (Pearson+)
10th Edition
ISBN: 9780137503148
Author: Ian Sommerville
Publisher: PEARSON+
bartleby

Videos

Textbook Question
Book Icon
Chapter 6, Problem 6.1E

When describing a system, explain why you may have to start the design of the system architecture before the requirements specification is complete.

Expert Solution & Answer
Check Mark
Program Plan Intro

Architecture design:

It is the high-level structures of a software system and also the discipline of developing such structures and systems. In this the structure includes the software elements, relations among them, and the properties of both elements and relations. It acts as the blueprint for the system and also the developing project, laying out the tasks that are required to be executed by the design teams.

Explanation of Solution

Importance of describing architecture before writing specifications:

  • In a model of software development process, architecture design becomes the first page of the system as it describes how the system is organized as a set of communicating components.
  • It is difficult to formulate the specifications written for the whole system as they increase the complexity. It becomes easier to define the specifications when the system is divided into subsystems. It defines the specifications and also put place it inside the respective subsystem.
  • With this process of developing subsystems and their respective specifications, we can readily jump into the implementation stage. Few reasons behind the fact that the architecture has to designed before specifications are written, are as follows:
  • It provides the structure.
  • The subsystems are developed and their specifications can be written concurrently.
  • It allows the manufacturing of hardware components by sub-contractors and also provides a model for system costing.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
I would like to get help to resolve the following case
Last Chance Securities The IT director opened the department staff meeting today by saying, "I've got some good news and some bad news. The good news is that management approved the payroll system project this morning. The new system will reduce clerical time and errors, improve morale in the payroll department, and avoid possible fines and penalties for noncompliance. The bad news is that the system must be installed by January 1st in order to meet new federal reporting rules, all expenses from now on must be approved in advance, the system should have a modular design if possible, and the vice president of finance would like to announce the new system in a year-end report if it is ready by mid-December." Tasks 1. Why is it important to define the project scope? How would you define the scope of the payroll project in this case? 2. Review each constraint and identify its characteristics: present versus future, internal versus exter- nal, and mandatory versus desirable. 3. What…
2. Signed Integers Unsigned binary numbers work for natural numbers, but many calculations use negative numbers as well. To deal with this, a number of different methods have been used to represent signed numbers, but we will focus on two's complement, as it is the standard solution for representing signed integers. 2.1 Two's complement • Most significant bit has a negative value, all others are positive. So, the value of an n-digit -2 two's complement number can be written as: Σ2 2¹ di 2n-1 dn • Otherwise exactly the same as unsigned integers. i=0 - • A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1, or 1 becomes 0) and then add 1 to the least significant bit. • Addition is exactly the same as with an unsigned number. 2.2 Exercises For questions 1-3, answer each one for the case of a two's complement number and an unsigned number, indicating if it cannot be answered with a specific representation. 1. (15 pts) What is the largest integer…

Additional Engineering Textbook Solutions

Find more solutions based on key concepts
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
MIS
Computer Science
ISBN:9781337681919
Author:BIDGOLI
Publisher:Cengage
Text book image
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Text book image
Fundamentals of Information Systems
Computer Science
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Text book image
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Text book image
Fundamentals of Information Systems
Computer Science
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Text book image
Systems Analysis and Design (Shelly Cashman Serie...
Computer Science
ISBN:9781305494602
Author:Scott Tilley, Harry J. Rosenblatt
Publisher:Cengage Learning
9.1.2 Software Development Approaches; Author: EIToppo;https://www.youtube.com/watch?v=Z9znuSQ7Sz8;License: Standard YouTube License, CC-BY