Effective Modular Design
A module is the essential part of any modular design. It is a logically separable part of a program. It is a program unit that is discrete and identifiable with respect to compiling and loading. So a module can be a macro a function a procedure ( or subroutine) a process or a package. In system which use functional abstraction a module is usually a procedure of function or a collection of these all.
To produce the effective modular design. Some criteria must be used to select modules so that the modules support well defined abstractions and are solvable and modifiable separately. In fact modularity has become an accepted approach in all software engineering disciplines. It reduces the complexity, heddles properly the software maintenance and results in the easier implementation by parallel development of different parts of the system. Here we will discuss some important criteria that will lead us to design the effective modularity.
1. Module types
2. Functional Independence
3. Cohesion
4. Coupling
1. Module Types
Before discussing the module types we should understand the various module operational features. As it is previously stated that abstraction and information hiding are used to define modules within software architecture. Both of these attributes must be converted into module operational features. There are total of three module operational features.
1.Time History of incorporation
2.Activation Mechanisms
3.Pattern of Control
1. Time History of Incorporation : It refers to the time at which a module is involved within a source language description of the software. So , basically this feature is related to the time. For an example a module made as a macro will be included in the program when any reference will be made in developer supplied code.
2. Activation Mechanism: It refers to the method which will activate a particular code at the time of reference. There are two activation mechanisms. First one is a conventional approach in which a module in invoked by call reference second one is used nowadays for real time systems in which a module may be invoked by interrupt. Like in Windows operating system we open a notepad, work on it now if we want to open more notepad then we will interrupt the first one discontinue its current processing and will open new one . so activation mechanisms are important to be used because they can affect the program structure.
3. Pattern of Control : Pattern of control of a module is defined as a manner in which it is executed internally. Traditionally a single entry and exit for modules is defined and modules are executed sequentially. But now the trend has changed. More sophisticated approaches have been introduced like a module may be re-entrant that is a module is designed so that it doesn't in any way modify itself or the local addresses that it references. So a single module maybe used by more than one task concurrently.
Within a structure a module may be of three types:
1. Sequential Module : In a sequential module the statements are executed one by one in a serial manner. No interruption will occur. such type of modules are most commonly used by subprograms. Subroutines functions procedures etc.
2. Incremental Module: An in ceremonial model is also called as the co routine. It can be interrupted prior to completion by application software and then again restarted at the point of interruption. It maintains an entry Point that allows the program to restart at the point of interruption. Example of this mode is interrupting Driven systems.
3. Parallel Module: A parallel module is also known as co routine which can be executed parallel with another module in concurrent multiprocessor environment. Such type of module is used when two or more CPU work parallel and perform some typical and high speed computation.
The last two module types require special design approaches that is why they are called as the non hierarchical or homologous structures.
Latest technology based Software Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Effective Modular Design homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Effective Modular Design, project ideas and tutorials. We provide email based Effective Modular Design homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Effective Modular Design. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Software Engineering homework help and assignment help services. They use their experience, as they have solved thousands of the software engineering assignments, which may help you to solve your complex issues of Effective Modular Design. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe.com transmethylation assignment help-homework help by online metabolism of proteins tutors
In order to perform the operations that mentioned above the computer allocates the work between its several functional units.
Classification of lipids tutorial all along with the key concepts of Acylglycerols, Phosphoacylglycerols, Sphingolipids, Sphingomyelins, Glycosphingolipids, Gangliosides, Waxes, Steroids and Terpenes
Theory and lecture notes of Exponential Functions and Their Graphs all along with the key concepts of Translations of Exponential Graphs, The natural base e, Compounded Interest, Continuous Compounding. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Functions and Their Graphs.
Theory and lecture notes of Preemptive scheduling all along with the key concepts of preemptive scheduling, lock management pragmatics, Operating system Lock Manager. Tutorsglobe offers homework help, assignment help and tutor’s assistance on preemptive scheduling.
First Law of Thermodynamics tutorial all along with the key concepts of Work in Quasi-Static Process, Response Functions, Heat Capacities, Force Constant, Thermal Response
Avail 24x7 support of apt Trigonometry Assignment Help tutors to obtain plagiarism free papers and A++ grades at affordable prices.
Organic, Inorganic and Metallic Pigmentsigments tutorial all along with the key concepts of Organic pigments, Key Features of Organic Pigments, Inorganic pigments, Differences between Organic and Inorganic Pigments, Differences between Organic and Inorganic Pigments
tutorsglobe.com phosphorus trioxide assignment help-homework help by online compounds of phosphorus tutors
www.tutorsglobe.com offers Essentials to Successful Budgeting homework help, assignment help, case study, writing homework help, online tutoring assistance by accounting tutors.
Varicaps or Varactors are employed for electronic tuning in tuner circuits. Varactor is a unique silicon diode, the junction capacitance of which is employed for tuning.
enthalpies of reactions tutorial all along with the key concepts of adiabatic expansion, irreversible adiabatic expansion, joule-thomson effect, kirchhoff's equation, bond enthalpies and estimation of enthalpies of formation
Want first-class Human Neuropsychology Assignment Help at your doorstep? Approach us and get benefitted with A++ grades.
Theory and lecture notes of Statistics Basic Concepts all along with the key concepts of Basic definitions, Population versus Sample, Discrete versus Continuous, Levels of Measurement and Types of Sampling. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Statistics Basic Concepts.
Satellite Orbit in a Many-Body Problem tutorial all along with the key concepts of Equations of Motion in Many-body Problem, Ten known Integrals of Motion,Integrals of Centre-of-Mass, Three Integrals of Area, Integral of Energy, Moment of Inertia and Force Function, Transfer between Orbits
1937248
Questions Asked
3689
Tutors
1494136
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!