introduction to software requirements specification

... (custom) - developed for a single customer according to their specification New software can be created by developing new programs, configuring generic software systems or reusing existing software ... for a particular customer or may be developed for a general market Software products may be • •  Generic - developed to be sold to a range of different customers e.g PC software such as Excel ... Slide Software costs    Software costs often dominate computer 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...

Ngày tải lên: 14/09/2012, 11:26

... focus on the tools used Some tool vendors refer to code-coverage tools as white box tools, and tools that facilitate applying inputs and capturing inputs—most notably GUI capture replay tools—as ... down Test monitoring tools should be used whenever possible to track which tests have already been performed and the outputs of these tests to avoid repetition and to aid in the software maintenance ... properly organised and stored and, last but not least, individual translators are not too motivated to change their working habits Laboratory tests are mostly performed to assess the general usability...

Ngày tải lên: 03/10/2013, 14:20

... employed types of testing Unit Testing: The testing done to a unit or to a smallest piece of software Done to verify if it satisfies its functional specification or its intended design structure Integration ... criteria, which enables a customer to determine whether to accept the system or not Performance Testing: To evaluate the time taken or response time of the system to perform it’s required functions ... with its specified requirements System Testing: Testing the software for the required specifications on the intended hardware Acceptance Testing: Formal testing conducted to determine whether...

Ngày tải lên: 25/10/2013, 03:20

... Pressman, Software Engineering: A Practioners Approach 5th Ed., McGraw-Hill, 2001 R Pressman, K ngh phn mm Tp 1, 2, NXB Giỏo dc, H Ni, 1997 (Ngi dch: Ngụ Trung Vit) I Sommerville, Software Engineering ... thng, thit k chng trỡnh, kim th, ton b quy trỡnh qun lý phỏt trin phn mm HUT, Falt of Dept of SE, 2001 SE-I.13 Nhúm cỏc chng trỡnh L phn giao din vi phn cng, to thnh t cỏc nhúm lnh ch th cho ... Phng phỏp lun (Methodology): nhng chun mc c bn ch to phn mm vi cỏc ch tiờu nh tớnh Cỏc phng phỏp k thut (Techniques): nhng trỡnh t c th ch to phn mm v l cỏch tip cn khoa hc mang tớnh nh lng...

Ngày tải lên: 20/12/2013, 17:15

... SE-III.18 Requirements Specification c t mụ t (Descriptive Specifications) Biu thc th liờn kt (EntityRelationship Diagrams) c t Logic (Logic Specifications) c t i s (Algebraic Specifications) ... liu Bookstore Orders N Books Cardinality : ch nh lng ca mi quan h 1:1 one -to- one 1:N one -to- many M:N many -to- many Modality : cú th cú, cú th khụng cú quan h bt buc cú quan h Customer HUT, ... (Operational specifications) mụ t cỏc hot ng ca h thng phn mm s xõy dng c t mụ t (Descriptive specifications) c t cỏc c tớnh c trng ca phn mm HUT, Falt of Dept of SE, 2002 SE-III.17 Requirements Specification...

Ngày tải lên: 20/12/2013, 17:15

... – – Kiểm thử lên (Bottom-up Test) Kiểm thử xuống (Top-down Test) Kiểm thử cột trụ (Big bung Test) Kiểm thử kẹp (Sandwich Test) HUT, Falt of  Dept of SE, 2001 SE-V.20 Bottom-up Test • Các môđun ... thử dựa đặc tả bên chương trình: Kiểm thử hộp trắng (white box test): HOW ? • Kiểm thử Top-Down hay Bottom-Up HUT, Falt of  Dept of SE, 2001 SE-V.12 Kiểm thử hộp đen • Phân đoạn tương đương ... chuyển lên mức HUT, Falt of  Dept of SE, 2001 SE-V.21 Bottom-up Test (Tiếp) Mức Mức Mức Mức HUT, Falt of  Dept of SE, 2001 SE-V.22 Top-down Test • Môđun điều khiển dùng trình điều khiển kiểm...

Ngày tải lên: 20/12/2013, 17:15

... build-test life cycle Prototyping Requirements gathering ‘Quick’ design Build prototype Evaluate & refine Engineer product Limitations of Prototyping • Customer may want prototype itself! • Developer ... throwaway prototype built from currently known user needs • Working or even ‘paper’ prototype Prototyping… • Quick design focuses on aspects visible to user; features clearly understood need not ... clearly understood need not be implemented • Prototype is tuned to satisfy customer needs - Many interactions may be required to incorporate changes and new requirements • Final product follows usual...

Ngày tải lên: 28/06/2014, 07:20

... similar—existing source code needs to be changed due to some changes in the requirements or due to some defects that need to be removed Overall, as the world changes faster, software has to change faster, even ... entity, as it must change to adapt to our increased understanding about software development and availability of newer technologies and tools Due to this, a process to manage the software process is ... the requirements team has finished requirements for timebox-1, the requirements are given to the build team for building the software The requirements team then goes on and starts preparing the requirements...

Ngày tải lên: 28/06/2014, 07:20

... program/system (Jorgensen) The purpose of software testing is to find errors and to get them fixed (Bitzenhofer) The purpose of software testing is to reduce risk (E&M) Verification and Validation: ... testing is knowing when to stop It is impossible to test your own program 15 Some Principles and Axioms of Testing (2)    As the number of detected defects in a piece of software increases, the ... design documents or specifications (“Design Verification Testing”) Validation: Checking the program against the published user or system requirements (“System Validation Testing”) Software Fault Terminology...

Ngày tải lên: 08/07/2014, 00:20

... Reserved Page 10 Software Requirements Specification for Student Report Score Card System Actor kích vào mẫu thư để xem chi tiết Actor thoát khỏi chức xem mẫu thư Alternative flows: AF1 Actor không ... chung Actor kích vào mẫu thư để xem chi tiết Actor thoát khỏi chức xem mẫu thư AF2 Actor hủy không xem mẫu thư : Bước đến Normal Flow Actorchọn hủy không xem mẫu thư Actor kích vào nút thoát Actor ... Page 18 Software Requirements Specification for Student Report Score Card System UI-01: Giao diện đăng nhập: Copyright © 2014 by Team 01 All Rights Reserved Page 19 Software Requirements Specification...

Ngày tải lên: 20/11/2014, 11:19

... overhead to the software because of the need to switch from one bank to another In addition, it is easy to forget about bank switching, which will cause the software to fail In order to solve ... the information stored in the SRAM will not be degraded Dynamic RAM uses one transistor and one capacitor to store one bit of information The information is stored in the capacitor in the form ... user to use symbols to refer to memory locations Using symbols to refer to memory locations makes the user program more readable During the following discussion, symbols are used to refer to memory...

Ngày tải lên: 08/03/2016, 11:36

... Wiley and Sons 11 System requirements vs software requirements  Software -to- be: software to be developed - part of the Software -to- be machine, component of the system -to- be  Environment: all ... wants to start.”  Software requirements: what the software -to- be should meet requirements on its own; formulated in terms of phenomena shared by the software and the environment “The software ... Categories of requirements: functional vs non-functional – The requirements lifecycle: actors, processes, products – Target qualities and defects to avoid – Types of software projects – Requirements...

Ngày tải lên: 13/07/2014, 07:20

... 2 Instructor Notes Module 12: Introduction to Functional Specifications Activities Activity 12.1: Risks of Not Using a Functional Specification This activity emphasizes ... students will be able to: ! Understand the value of a functional specification ! To prepare for the activity • Complete the activity yourself Module Strategy Use the following strategy to present this ... functional specification ! Functional Specification Validation The concept of validation should not be new at this point in the course, but you still need to emphasize its necessity when applied to a...

Ngày tải lên: 22/10/2013, 16:15

... subject to validation and verification procedures The requirements may be validated to ensure that the software engineer has understood the requirements It is also important to verify that a requirements ... is important to describe requirements precisely enough to allow the requirements to be validated, their implementation to be verified, and their costs to be estimated Specification For most engineering ... committed to addressing the requirements Requirements validation is concerned with the process of examining the requirements document to ensure that it defines the right software (that is, the software...

Ngày tải lên: 21/12/2013, 04:18

... subject to validation and verification procedures The requirements may be validated to ensure that the software engineer has understood the requirements It is also important to verify that a requirements ... is important to describe requirements precisely enough to allow the requirements to be validated, their implementation to be verified, and their costs to be estimated Specification For most engineering ... committed to addressing the requirements Requirements validation is concerned with the process of examining the requirements document to ensure that it defines the right software (that is, the software...

Ngày tải lên: 21/12/2013, 06:18

... 12: Introduction to Functional Specifications Activity 12.1: Risk of No Functional Specification Functional Specification Validation Functional Specification Creation Module 12: Introduction to ... 12: Introduction to Functional Specifications Factors That Determine the Form Slide Objective To describe the factors that determine the form of the functional specification Lead-in Several factors ... are met by the functional specification 444 Module 12: Introduction to Functional Specifications Prototypes Slide Objective To explain that prototypes are a useful tool for validating a design...

Ngày tải lên: 17/01/2014, 09:20