Steps to Task List and Task Group in Forum Sentry. (79/285 technotes for 2015).

Creating a SSL Initiation Policy (78/285 technotes for 2015)

• Login
  
• Resources –> Security Policies –> SSL

Creating a Remote Network Policy for Forum Sentry (77/285 technotes for 2015)

Importing SSL Certificate in Forum Sentry (76/285 technotes for 2015)

• Login 
• Resources –> PKI –> Keys

IBM BPM Snapshots. (75/285 technotes for 2015)

Snapshots are

• Immutable version of Process Application, Toolkit 
  
• 
  

Key Concepts for IBM BPM 7.5? (74/285 technotes for 2015)

Process Application - 

• is a packaging and deployment construct
  
• container - which has all the models, data definitions, service models, rules and supporting files to edit and run
  
• can contain 1 or more BPD
• can have dependencies on Toolkits
• acronym must be unique

Toolkit - 

• is a way to manage reusable assets
  
• is a collection of BPM library items that can be shared across multiple projects in IBM Process Designer
• contain - all of the same Library Items as Process Application
• process Application which has dependency with Toolkit - can use all the elements of the toolkit
• can only be edited - by users with the write/admin privileges. It is available as Read-Only in the Process Application
• Process Application can upgrade to the newer version of the toolkit and revert back very easily.

Snapshots & Tracks - are part of the version management infrastructure.

Participant Groups - are how you manage who can work with different parts of the business

Security Groups - are how you manage who can create/edit and deploy Business Processes during deployment.

Scripting/Programming Language - Javascript is used to define logic and manipulate data

Advance Editor - complex Javascript

Programming Model in IBM BPM - Clear seperation

• Model or the Flow
• Implementation

IBM BPM Design Patterns for Performance. (73/285 technotes for 2015)

BPM - performance

• Use high performance disk subsystems
  
• Use most current BPManager and BPMonitor reelase
• Appropriate JVM Heap Size for optimal throughput and response time
• Tune your DB for optimal performance
• Disable tracing and logging
• Configure thread pools to ensure sufficient concerrency
• Use fast, high bandwidth network connections
• For Business Processes - that use 
• BPMN - 
• tune the bpd-queue-capacity & max thread pool size - optimal throuput and scalling
• remove unnecessary snapshots from Process Center
• disable notifications is they are not required
• define auth alias, when using CEI to emit events
• tune cache parameters
• tune participant groups
• optimize data search operations
• tune Event Manager - tune BPD pool size, and worker thread pool size.
• tune number of timer events
• tune Process Server DB - increase log file size & enable file system caching
• BPEL  - 
• maximize the use of micro flow
• use non-incorruptible processes - if macroflow is needed - separate the solution to use microflows and macroflows
• For task and process list queries - use composite query tables
• Use Work Manager based navigation to improve the throughput for long running processes.
• avoid using asynchronous processes unnecessarily.
• avoid overly granular transaction boundaries in SCA

Model & Development:

BPEL / Integration Designer:

• use short running processes - run in one J2EE Transaction with no persistence – Where possible use synchronous interaction for non-interruptible processes
• if macro flow is required create a seperate BPEL
• Avoid using - async calls
• fewer transactional boundaries - best case use      
• Join Transaction (Interface of the called component) - true, 
• Suspend Transaction (Reference of the calling transaction) - false,

• Transaction - any global
• Services that are automated or start other services - web services, enterprise resource applications

Events: 

• start and end - 2 events are sufficient 

Architecture:  

• Choose query tables for task list and process list queries.
• Choose efficient metadata management - 
• performance is better if BO types follow the Java naming standards 
• reuse dataobject type metadata where possible - rather than using DataFactory.create(String URI, String typeName) use DataFactory.create(Type type)             -
• Business State Machine uses more power …  so choose BPEL is possible.
• Use - share by reference libraries where possible
• Ensure content in toolkit is used in several applications.
• BO parsing mode - Applications which Data Streams - like Webservices, SCA components benefit from lazy parsing.  

 

BPMN / BPD:

• Involve Human Interactions     
• Business Process - should have a Business Significance … and not just programming - level granularity

Events:     

• use of Events (CEI) - should be for Business Monitoring - as event emission uses persistent mechanism      
• Business Monitoring should not be confused with IT Monitoring     
• Clients are concerned about state of their business - so use events to track when a task completes / or changes state

Architecture:

• Fast connection between Process Designer and Process Center     
• Minimize the use of Service Tasks -      
• Use searchable business variables - with caution    
• minimize the number of variables used     
• minimize the size of each variable used     
• set variables to null when no longer use - like DB result sets    
• turn off auto-tracking - auto tracking in BPD is not required - enabled by default - if required create tracking groups to track key events. 
  
• avoid BPDs that run perpetually / continuously – as it polls continuously for events -  alternatives - use JMS service or UCA 
• develop efficient coaches          
• Avoid large complex coaches         
• Avoid large / repeating tables - use pagination          
• Always wire coaches to end node     
• Minimize use of Large Javascript scripts - it might produce large DOM models - which is expensive - limit it to 50 lines     
• Avoid direct sql access to internal BPM tables - such as LSW_TASK or LSW_PROCESS - use BPM javascript / rest apis     

Development Best Practice:

• clear variables in exposed human services that are not intended to end 
  
• donot use multi instance loops in the system lane or for batch activities   
• use conditional joins only when necessary
• Avoid global error handling
• Use sequential System lane activities efficiently.
• Ensure Process Center is tuned
• preventing wsdl validation from slow web service performance

References:

http://www.evernote.com/l/AKZrhhusWANG75yXr6HJbHEDMoWmyCvplqM/

What is ENI (Elastic Network Interface) in AWS? (72/285 technotes for 2015)

Elastic Network Interface is a Virtual Network Interface that you can attach to an instance in VPC.

NIC - A network interface is the point of interconnection between a computer and a private or public network. A network interface is generally anetwork interface card (NIC), but does not have to have a physical form. Instead, the network interface can be implemented in software.

For eg: Loop back address or 127.0.0.1 is not a physical device - but a software simulating a network device

References:

http://bit.ly/1bEtFc0

What is Reverse DNS for email applications? (71/285 technotes for 2015)

If you plan to send email from one of the instances

• Provision and EIP for the instance.
  
• Request to remove email sending limitations with the EIPs.
• AWS works with ISPs and Internet Spamming Organization - Spamhaus to reduce the email sent be flagged as spam

When should we use instances with multiple IP addresses? (70/285 technotes for 2015)

It can be useful to have multiple IP addresses to your instance in VPC to do the following

• Host multiple websites on a single server by using multiple SSL Certificates on a single server and associating each server with a specific ip address.
  
• Operate network appliances, such as firewalls and load balancers that have multiple private ip addresses for each network interface
• Redirect internal traffic to a standby inatance in case your instance fails by re-assigning the secondary private ip address to the standby instance

References:

http://amzn.to/1zq6M7g