Milestones For DRUPAL to AEM Migration Approach:
The following steps illustrates the sequence of events in a content migration.
§ Finalization
of functional specifications design
§ Finalize
the current and future document state
§ Install
and Configure the setup of AEM author and Publisher environment
§ Finalization
of new design based on the existing and Future website structure
§ Finalization
of mapping structure between existing website and New website
§ Validation
of Migration functionality in Test environment and then move it to Production
environments
§ Add the
new content entry to newly designed website
§ Pre-migration
of Final content –finalist the content freeze
§ Post Content
migration, Validation in Production environments
§ Delta
Migration from existing website to new website based on new structure
§ Finalize
the Go Live date
Existing Drupal system to AEM system mapping
Fig.1 Drupal system to AEM system Mapping
Pre-Migration Activities : AS-IS Site Migration to - To-Be Site Migration
§ Below
diagram describes the Pre-migration steps.
§ Existing
site Audit Analysis
§ Page
to Template mapping
§ Components
to Page mapping
§ Web
Function migration
§ Content
Migration Hidden challenges
§ Finalizing
final wireframe
§ Finalizing
Base templates based on page structure
§ SEO-Impact
Analysis
§ Complete
Sitemap Analysis
§ Migration
Data Identified
Fig: 2 Pre-migration steps
Template mapping
§ Template
design for Obsolete pages will be reference to AS-IS website pages
§ Template
designed for To-Be based on To-Be page structure
§ Association
of To-Be template
Fig: 3 Template mapping from
AS-IS website to To-Be website
Page and Template mapping from AS-IS
website to –To-Be website pages
§ Page
Design components identification with reference to AS-IS Page structure
§ Create
new pages based on finalized To-Be base templates
§ Association
of AS-IS page to- To-Be page Template
Fig: 4 Page and Template mapping
from AS-IS website to –To-Be website
Components and Page Mapping
§ AS-IS
website component list will be mapped to the To-Be site components list
§ Validating
AS-IS component mapping with the AEM OOTB component list
§ Use
of OOTB/Custom component while migrating the static content and dynamic components
functionality from AS-IS website to the To-Be site website
§ Create
pages based on the mapped To-Be template and use custom and OOTB AEM
components.
Fig: 5 Components to Page
Mapping form AS-IS website to To-Be website
AEM tree
taxonomy:
§ Based on the existing taxonomy , Create taxonomy
in the AEM CMS
§ Finalize the Taxonomy structure
Sitemap
§ Derive
the sitemap based on sitemap from existing site audit analysis and new pages
needs to be added.
§ For To-Be
site map will be create based on the existing site audit map and To-Be sitemap
Cleaning Your Data
Data
Cleaning includes following tasks
§ Inline Markup
§ Embedded
Links
§ Embedded
Server side code
Avoid SEO Impact during website migration
§ Key
points needs to be considered during website migration
§ Industry
best Practice SEO Guidelines will be
followed for the website migration-Meta
data, keywords and tag migration from AS-IS website to To-Be site
§ During migration Minimize the traffic
loss
§ During migration Minimize the ranking
drops
§ During migration avoid Key rankings
maintenance
§ During migration avoid Head traffic
maintenance
§ During migration avoid Covering
additional keywords
§
During
migration avoid Eliminating non-performers
§ During migration avoid Loss of Indexed pages
§ During migration avoid 404 errors
§ During migration avoid Old site still showing in
Google
§ During migration avoid Loss of page rank
Digital asset missing
§ During
pre-migration Identify the asset to be migrated
§ During
pre-migration Create asset taxonomy structure in AEM and upload images to AEM
Web Function
§ During
migration Identify the web function if any
§ Prepare
plan for the static and Dynamic component migration
Migration
Cutover-Activities
§ List
of Migration Activities
Fig: 6 Migration cut over
activities
Migration
Cut over Process:
§ Migration
from UAT to Prod environment
§ After
content freeze in the existing system, for creating any new pages To-Be
template will be used to create content in AS-IS website
§ During
delta migration author is Drupal system should make note of content and to be
template used for creating content in existing website
§ Delta
migration to SIT and Delta migration from SIT to UAT , UAT to Prod environments
Fig: 7 Migration Cutover
process
Database Table Mapping from existing to
AEM database.
§ Existing
MySQL and MS SQL database table mapping will be done with AEM JCR repository
§ Drupal content migration from MySQL to
AEM JCR repository
SEO-tags
§ During
migration from Drupal to AEM all the SEO tags mill be migrated
§ While
SEO tag migration association of tags with content, dam assets will be taken
care in AEM Tagging system
Existing Tag structure and entire tag
list
§ Existing
Tag structure will be taken care so that it will not impact on SEO.
§ If
required reorganization of Tag structure will be taken care during migration
SEO Friendly URL Redirects
· URL
mapping to achieve search-engine friendly URLs can be accomplished in using the
Apache Felix Web Management Console. apache sling resource resolver
Video’s
§ Uploading
images from local file system to AEM system through DAM console
Converting HTML embedded content to
Plain text
§ Most
of the content in Drupal CMS are HTML embedded content, during migration these
HTML embedded contents are converted to Plain text.
§ AEM
doesn’t support embedding of HTML content inside the component, from AS-IS
website all the HTML embedded content will be converted to AEM component.
Static content and dynamic content
§ Now
migrating the content from Drupal to AEM, Mapping the content and content type
to the AEM OOTB components.
Component from Drupal
|
Drupal CMS
|
Adobe AEM component
|
Only
Static Content
|
Extract
|
Text
component
|
Static
content with image
|
Extract
|
Text
Image Component
|
Video
, Images and Document
|
Extract
|
Has
to be stored in DAM
|
URL
|
Extract
|
Part
of Sling resource resolver
Sling
Resource resolver component allows to add/remove absolute or relative path of
any URL
|
Taxonomy
|
Extract
page path
|
Create
taxonomy level page
|
Adobe AEM Static content-Text ootb component
§ For any static content the Text component will be used for the content migration from Drupal
to Adobe AEM CMS.
RSS feeds
§ Existing
RSS feeds data will be migrated from Drupal CMS to AEM JCR repository
§ AS-IS
functionality will be migrated of RSS will be migrated from source to
destination system
Web forms data
§ All
the web forms data from source to destination
will be migrated
Migration Process
§ Page
level migration through Manual process
I.
For Obsolete pages will follow the manual
migration
§ Set
of pages migration through Automated process
Extract Content from Source CMS
§ Extracting content from Drupal CMS
§ Testing
and verifying the accuracy of the extraction and making appropriate changes to
the script or program if needed.
Import Content to Target CMS
§ Create scripts/programs to perform migration based on mapping
specs
§ Run migration script to import data to the new CMS
§ Test and verify the accuracy of the import and make appropriate
changes to the script/program if needed
User Access Control
§ Export the existing User Details and creating User
details and assigning the CRUD privileges to the imported users in AEM
§ Creating users and Groups details in AEM.
Create a Test Plan and Test Scripts
Design Approach
Migration
Activities
|
SIT
Environment
|
UAT
Environment
|
Prod
Environment
|
Static Content validation
|
YES
|
YES
|
YES
|
Dynamic content Validation
|
YES
|
YES
|
YES
|
End to End
Site Navigation validation
|
YES
|
YES
|
YES
|
Branding validation
|
YES
|
YES
|
YES
|
Copyright Validation
|
YES
|
YES
|
YES
|
Validation of images, video, URL
|
YES
|
YES
|
YES
|
Validation of Meta-data, keyword , SEO tags
|
YES
|
YES
|
YES
|
User access control validation
|
YES
|
YES
|
YES
|
Database schema , Table and total records
validation
|
YES
|
YES
|
YES
|
Content Version and Latest content validation
|
YES
|
YES
|
YES
|
Sitemap validation
|
YES
|
YES
|
YES
|
Note: Yesà Validation is
completed.
Table: 1 Test Plan and Script execution
sequence.
§ Post
content migration few content mapping needs to verified and validated
§ Migration
verification and validation report shows the status of content migrated from
source to destination
§ If
content creation is getting failed to
migrate in any of the instance , that failure needs to be highlighted in report
Perform Migration from SIT to UAT and Prod
Perform Migration from SIT to UAT and Prod
Activities List
|
SIT Environment
|
UAT Environment
|
Production environment
|
|||
§ Content and Digital
assets Migration and Validation
§ Delta Migration and
Validation
|
Author
Instances
|
Validate
the content migration
|
Author
Instances
|
Validate
the content migration
|
Author
Instances
|
Validate
the content migration
|
Publish
instances
|
Publish
the validated content from author to publish
|
Publish
instances
|
Publish
the validated content from author to publish
|
Publish
instances
|
Publish
the validated content from author to publish
|
|
Table: 2
Migration from SIT to UAT and UAT to PROD
§ Make
sure only latest content is migrated staging instance to production instance
§ If
content is versioned prior to production migration those content details needs
to noted
Content Migration Methods or Approaches
Content Migration Methods or Approaches
Automated Approach for
Migration
Task ID
|
Task Name
|
Description
|
Remarks
|
1
|
Content Type based metadata
|
Define a list of metadata for each content type
|
|
2
|
Finalized XML Structure
|
XML Structure needs to be
finalized with Client SME's
|
|
3
|
Design and Develop Migration Script
|
Design and Develop Migration script based on finalized XML
structure from Task# 2
|
|
4
|
Content Populated XMLs for website to be migrated
|
Client to provide populated XMLs for all target websites which
are used for migration
|
|
6
|
Dry Run of Migration Script in Test Environment
|
Dry run of migration script for a single product
|
Table: 3 Approach for Automated
migration
Manual Migration Approach
§ Identify the Static content
§ Identify the dynamic content
§ Identify the regular dynamic content
§ Identify the Static component
§ Identify the Dynamic component
§ This approach will be “cut and paste.
Initial Content in Production approach
§ Post
the entire content migration to production instances , migration has to be
tested
§ And
content changes needs to frozen in the OLD CMS
§ Avoid
content changes in the OLD CMS by removing access rights for the content author
§ No
need of content freeze in the new CMS in the production environment while the
delta content is being imported as shown below approach
o
Post content freeze- To-Be template will used
for any content updates in AS-IS website – those newly added information needs
to be captured in the separate spread sheet- helps to migrate into the To-Be
website.
o
During Delta content migration- initially
migration will happen to production author instance hence there is no need of
content freeze in production – however delta migration will not impact on the
live website-i.e. publish instances.
Fig: 8 Content freeze in
Production
Validate the Production Migration
§ Have
validation and verification of steps followed during test migration
§ Production
migration ensures that all verification and validation approach works in the
production environment.
Delta Migration & Validation
approach
§ To-Be
Template will be used for creating content in the Drupal CMS after the content
freeze in the Production.
§ A
final export from the old CMS will pick up all content that has been created or
modified since the main migration and import it to the new CMS in
production.
§ Once
the final content migration is done, finally verify and validate the content
which are migrated in the production instances.
Fig: 9 Delta content migration and validation
Perform Migration Validation and
Verification in the Test Environment Approach
§ Validate
and verify the content has been migrated to the destination location i.e. AEM
§ During
migration different type error can show up during this process:
§ Error
can be Content Issues – Content can be missing, placed in the wrong location,
or have incorrect attributes.
§ Error
can be Mapping Specifications – The mapping specification may be incorrect or
incomplete.
§ Error
can be CMS Configuration – The migration may fail because the new CMS has not
been configured correctly.
Fig10: Migration Validation Steps.
Post Website Migration Checklist
§ Make
sure website pages renders properly
§ Make
sure spelling and grammar on landing and Home page and detail pages
§ Use
build in External link checker to verify all external links are working fine
§ Make
sure all URL redirection works fine
§ Make
sure all forms are in Reset mode
§ Make
sure robots.txt file is used for to
avoid instance searching for the google engine
§ Make
sure all Social media buttons are working and URL redirection happens to
correct website page
§ Make
sure 404 and 500, 502,503 custom error page are build
§ Make
sure website backup is happening on hourly basis of content and digital assets
(incremental backup)
§ Make
sure once in a 1 month full repository backup is taken
§ Make
sure internal system monitoring is happening for the Disk, CPU, Memory, I/O,
network, Bandwidth
§ Make
sure there is no temporary URL redirect exist in your website
Fig11: Post website Migration
checklist.