generally speaking, there can be a few independent but overlapping mechanism that will control who is allowed to do what with content:
1. any subject's access to the content itself can be controlled via authorization rules (ie. required vs granted permissions) enforced via system-wide resource-based access control
2. content licensors (~content owners) can restrict the usage of their content by:
* whom - ie. content licensee (legally/commercially represented by an organization)
* how - eg. reuse as unmodified, create derivatives, composite, redistribute, etc
* where - ie. distribution channels their content can be used (eg. only on hotel's vbrochure site, but not in any ids/gds channels)
* when - temporal restrictions may limit scope of content license grant by: start, end, duration, season, etc
3. content licensees can further filter or funnel content available to them (resulting from a combination of license granted to them and access control) based on their own criteria (eg. generate a templated hotel presentation only if: at least 1 textual description, 5 photos and 1 video for a hotel is available with a license to combine them (composite content)
if ecm/vfml is to manage content licensing as a third party between organizations (content licensors & licensees) shouldn't ecm *know* if the user('s organization) has rights to use the content in question?
is this question posed to the user (with required explicit acknowledgement) purely to absolve vfml from liability issues that may result from licensing disagreements?
this being the user's (organization's) 'version'or 'view'of the hotel, since this user normally wouldn't/shouldn't be granted permissions to replace content for a hotel on a different organization's 'view'or 'version' of the same hotel
this implies that *at least* one version of such (temporarily) replaceable content needs to be managed/maintaned to allow reverting
what if, deliberately, ignorantly or maliciously, a user replaces the same piece of--textual or any type, really--content for this hotel n times? will all n versions be required to be managed as an undo history?
the user's ''original content'' might have been version 1, but equally might have been 1 mean:
- previous version of the content, regardless of which user
- initial version of that content attached to the hotel regardless of which user created/updated it and ignoring which organization owns it?, or,
-
Modes define what SQL syntax MySQL should support and what kind of
data validation checks it should perform
Server SQL Modes
When working with InnoDB tables using the
InnoDB Plugin, consider also the
innodb_strict_mode configuration
option. It enables additional error checks for
InnoDB tables, as listed in
InnoDB Strict Mode
ie. never? ;)
though then, you end up with 5,932 unread emails in your inbox and 113 angry co-workers!
To combat such interruption, check these tools 3 times a day – when you first get into the office in the morning, around lunch, and before going home for the night – and turn them off otherwise.
Java NIO high-performance messaging (thousands of clients per CPU)
No
Yes
Real Time Messaging Protocol (RTMP)
No
Yes
Data throttling
No
Yes
Reliable communications
Baseline Diagram Comparison
Conduct a visual diagram comparison between your current diagram and a previous baseline .
Personal Information Window
See how the Personal Information Window in Enterprise Architect can help you organize your daily tasks and workflow.
Working Sets
As you perform work on your model, you open various windows, diagrams and views. Working Sets allow you to return to these same views in a later work session.
Business Rules
A car rental system is used to illustrate how to generate executable business rules using Enterprise Architect.
Menu Customization
Quickly and easily suppress individual menu items or entire categories of commands to create custom menu layouts.
Floating and Dockable Windows
Save the position and layout of Floating and Dockable Windows using a Working Set in the Personal Information Window.
Build and Debug a Java Application
Set up Enterprise Architect to build and debug a Java Application, using a VEA sample project.
Sequence Diagrams
Learn how to create a simple Sequence diagram. The video also illustrates how to bring your Sequence diagram to life using model simulation.
HTML Report Generation
This brief introduction illustrates how to automatically generate a HTML Report using Enterprise Architect.
Basic Use Case Demonstration
A guide to constructing a Use Case model in under 30 seconds, including use cases, notes and issues.
Traceability within Enterprise Architect
This video examines Traceability and discusses how to use Enterprise Architect to conduct an Impact Analysis.
Requirements Reporting
A brief overview of requirements reporting in Enterprise Architect. Topics include document generation in web and RTF formats, report customization and virtual documents, including Model and Master documents.
Requirements Traceability
An examination of requirements traceability in Enterprise Architect. Topics include traceability views, tracing to external artifacts, conducting an impact analysis, viewing the Relationship Matrix and using Enterprise Architect's Auditing capabilities.
Requirements Modeling
A brief overview of requirements modeling in Enterprise Architect. Topics include requirements capture and definition, custom properties, tabular editing, auto-naming and screen prototypes.
Installing EA
An introductory walk through and discussion of Enterprise Architect in the Software Development Lifecycle.
Enterprise Architect 7.5 Overview
An overview of Enterprise Architect features released with version 7.5.
Introduction to Enterprise Architect
An introductory walk through and discussion of Enterprise Architect in the Software Development Lifecycle.
Brief Overview
The 10 minute guide to Enterprise Architect, from Requirements Management and Business Process Modeling to MDA and Code Engineering.
discuss the rationale for migrating your applications from Spring to Java EE 6 and show you real examples of upgrading the web UI, replacing the data access layer, migrating AOP to CDI interceptors, migrating JMX, how to deal with JDBC templates, and as an added bonus will demonstrate how to perform integration tests of you Java EE 6 application using Arquillian
EntityManagerClinicTest
There is also an interesting Arquillian Persistence extension that integrates DBUnit in Arquillian where you can define your test data externally
JDBC Templates hardly give any abstraction on top of the database and you’re on your own for Object Relational Mapping. We strongly advise to use JPA wherever possible; it gives portability by abstracting most of the database specific SQL that you would need, and it does all the hard and painful work of object mapping
Why is the constructor invoked twice when a normal scoped bean is created?
What you see is the instantiation of two objects: one is the actual bean instance, the other one is the proxy. Both likely invoke the default constructor.
That's why it's generally considered a bad idea to do initialization in class construction code. Instead, when using managed beans (objects managed by the EE container) to perform initialisation in a @PostConstruct or @Inject annotated method.
A Permission represents the ability to perform an action or access a resource. A Permission is the most
granular, or atomic, unit in a system's security policy and is the cornerstone upon which fine-grained security
models are built.
a Permission instance only represents functionality or access - it does not grant it
permissions are immutable and reflect an application's raw functionality
because Permissions represent raw functionality and only change when the application's
source code changes, they are immutable at runtime - they represent 'what' the system can do
by transitive
association, the user 'has' the permissions in their roles
all
Permission checks are relegated to Realm implementations, and only those
implementations really determine how a user 'has' a permission or not
Realm could use the semantics described
here, or it could utilize some other mechanism entirely
In any access control model, the entities that can perform actions in the system are called subjects, and the entities representing resources to which access may need to be controlled are called objects
object-capability model, any software entity can potentially act as both a subject and object
Access control models used by current systems tend to fall into one of two classes:
those based on capabilities
those based on access control lists (ACLs)
Both capability-based and ACL-based models have mechanisms to allow access rights to be granted to all members of a group of subjects (often the group is itself modeled as a subject)
identification and authentication determine who can log on to a system, and the association of users with the software subjects that they are able to control as a result of logging in;
authorization determines what a subject can do;
accountability identifies what a subject (or all subjects associated with a user) did.
Authorization determines what a subject can do on the system
Authorization
Access control models
categorized as either discretionary or non-discretionary
three most widely recognized models are
Discretionary Access Control (DAC)
Mandatory Access Control (MAC)
Role Based Access Control (RBAC)
Attribute-based access control
Discretionary access control
Discretionary access control (DAC) is a policy determined by the owner of an object. The owner decides who is allowed to access the object and what privileges they have.
Every object in the system has an owner
access policy for an object is determined by its owner
DAC systems, each object's initial owner is the subject that caused it to be created
Mandatory access control
Mandatory access control refers to allowing access to a resource
if and only if rules exist
that allow a given user to access the resource
Management is often simplified (over what can be required) if the information can be protected using
hierarchical access control
or by implementing sensitivity labels.
Sensitivity labels
A subject's sensitivity label specifies its
level of trust
level of trust required for access
subject must have a sensitivity level equal to or higher than the requested object
A Realm is a security component that can access application-specific security entities
such as users, roles, and permissions to determine authentication and authorization operations
security-specific
DAOs
If for some reason you don't want your Realm implementation to perform authentication
duties, you should override the supports(org.apache.shiro.authc.AuthenticationToken) method to always
return false
does not require you to implement or extend any User, Group or Role
interfaces or classes
Shiro tries to maintain a non-intrusive development philosophy
Most users will not implement the Realm interface directly, but will extend one of the subclasses,
AuthenticatingRealm or AuthorizingRealm, greatly reducing the effort requird
to implement a Realm from scratch
If caching is enabled and if any authorization data for an account is changed at
runtime, such as adding or removing roles and/or permissions, the subclass implementation should clear the
cached AuthorizationInfo for that account via the