Introduction to Activity Diagrams
An activity is an ongoing atomic execution within a state machine. Activities always result in some action. Activity diagrams look at the operations that are passed among objects.
Activity diagrams model the dynamic aspects of system. They are essentially flowcharts which shown flow of control from activity to activity. Some aspects of it are:
Contents of Activity Diagrams
There are some contents of activity diagrams given:
1. Activity state and action states,
2. Transitions and
3. Objects
These contents are now discussed one by one.
1. Activity State and Action States: The difference between these two states are:
Action states cant be decomposed whereas activity states can be decomposed further as the activities of the states are depicted by other activity diagrams.
Action states are atomic means that events may occur and they don't affect the work of the action state. Activity diagrams are not atomic i. e. They may be interrupted.
An action state is represented by using a lozenge shape as shown in fig 8.32,
Inside the steps we can write any expression.
On the other hand activity states may have some additional such as entry and exit actions.
2. Transition: The flow of control passes immediately to the next action or activity state whenever the action or activity of a state completes. This flow is depicted by using transitions to shown path from one action / activity state to the next action/ activity state.
Transition is represented by a simple directed line, shown in fig 8.33,
3. Objects: There are many objects and we have already discussed them in the objects diagrams. One more concept to be discussed is branching.
Branching
A branch can be included to model the flow of control. The branch specifies alternate paths taken based on some Boolean expressions. So ,
Branches are depicted as diamonds as shown in fig 8.34,
A branch may have one incoming transition and two or more outgoing ones.
Iteration is also possible
Latest technology based Software Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Activity Diagrams homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Activity Diagrams, project ideas and tutorials. We provide email based Activity Diagrams homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Activity Diagrams. 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 Activity Diagrams. 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.
www.tutorsglobe.com offers functional analysis homework help, functional analysis assignment help, online tutoring assistance, math solutions by online qualified tutor's help.
rc oscillators tutorial all along with the key concepts of phase shift principle,rc or phase shift oscillator, frequency of oscillation, wien bridge oscillator, phase shift principle
Manufacture of Hydrochloric acid tutorial all along with the key concepts of preparation of HCl-Synthesis from elements, Reaction of metallic chlorides, As a by-product of chlorination, thermal decomposition of the hydrated heavy-metal chlorides and incineration of chlorinated organic waste
tutorsglobe.com respiration assignment help-homework help by online plant physiology tutors
Looking for bimolecular assignment help - bimolecular homework help and biology tutor service? get solved your bimolecular problems online.
www.tutorsglobe.com offers Module Based Programming Languages homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
Class C Amplifiers tutorial all along with the key concepts of Modes of class c amplifier, Output characteristics of Class C power amplifier, Class C power amplifier circuit diagram
Blood and Tissue protozoa tutorial all along with the key concepts of Trypanosome, Trypanosomiasis, Leishmania, Leishmaniasis, Plasmodium, Malaria, Babesia, Babesiosis, Toxoplasma and Toxoplasmosis
www.tutorsglobe.com offers acidity of carboxylic acids homework help, acidity of carboxylic acids assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
Parasitology and Immunology tutorial all along with the key concepts of Concept of Immunity, Passive Immunity, Active Immunity, Innate Immunity, Acquired Immunity and Humoral immunity
A heating device where the electrical energy is converted into heat energy is known as electric iron box.
www.tutorsglobe.com offers reactions of substituted benzenes homework help, reactions of substituted benzenes assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
Reactions of Chromones tutorial all along with the key concepts of Chemical reactions of Chromones, Chromone Conjugation, Reaction of Chromones and Reactions of Chromones with Nucleophiles
Theory of Chemical Bonding tutorial all along with the key concepts of Ionic and Covalent Chemical Bonds, Electronic Theory of Chemical Bonding
tutorsglobe.com commensalism assignment help-homework help by online positive interactions tutors
1937828
Questions Asked
3689
Tutors
1441613
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!