Back to the engagement

From a delivered engagement

An operating integration. A handover built to last.

Inside the architecture, business rules, and operational detail behind a completed field-service modernization.

Adapted from a completed engagement’s implementation runbook. Selected content has been anonymized, condensed, and re-typeset for public presentation. This is a historical delivery excerpt, not a current view of the client’s environment.

Download the excerpt (PDF)

01 / Architecture

Preserve the operating flow.

Replace a legacy integration while preserving the work-order, user, employee, and daily-reporting workflows connecting an enterprise system with a field-service platform.

Logical integration view
  1. System of record

    Enterprise system

    Work orders, allocations, resources, rates, employee records, and operational postings.

  2. Orchestration & control

    Integration layer

    A central router dispatches requests to purpose-built handlers for validation, transformation, and business processing.

  3. Operational execution

    Field-service platform

    Work information moves to the field. Status, user, and daily-activity updates return to the enterprise system.

Controlled external access. The source architecture places the enterprise database and integration runtime internally, with external access through an authenticated application proxy. The view here omits network topology and deployment configuration.

02 / Delivery coverage

Nine processes. One complete operating model.

The closeout runbook records all nine production processes as completed and operational, including the central router and eight business-process handlers.

9 of 9

Production processes recorded operational
At implementation closeout

  1. Request routing

    Dispatch incoming requests by method and operation; centralize response handling.

    Completed
  2. Work-order creation & update

    Assemble job, allocation, tool, and rate information for the field-service platform.

    Completed
  3. Status synchronization

    Return work-order state changes to the enterprise system.

    Completed
  4. Work-order detail retrieval

    Provide job information, assignments, equipment, customer context, and rates.

    Completed
  5. Targeted job retrieval

    Return selected work-order information in a focused response.

    Completed
  6. Operation reopening

    Coordinate the dependent posting and document changes needed to reopen work.

    Completed
  7. User creation

    Map field-platform users to enterprise records, with duplicate detection and validation.

    Completed
  8. Employee retrieval

    Return employee information for the required operational workflows.

    Completed
  9. Daily activity processing

    Process reported time, expenses, and equipment usage; aggregate the results.

    Completed

03 / Engineering judgment

The detail that made the difference.

Daily activity processing required more than a field-to-field translation. The runbook records three corrections to the transaction behavior.

Correction 01

Match the actual transaction contract

What surfaced
Daily posting depended on a procedure signature that included an additional pricing parameter.
What changed
Corrected the parameter mapping to match the actual database procedure, including the pricing override.

A syntactically valid request still has to satisfy the system’s operating contract.

Correction 02

Preserve the business rule behind the data

What surfaced
The enterprise system restricted how a particular class of activity could be posted.
What changed
Aligned the posting category with the permitted business process instead of treating a familiar label as a valid mapping.

Field names alone did not explain the rule. The implementation had to reflect observed business behavior.

Correction 03

Normalize values before processing

What surfaced
Identifiers crossed the integration boundary with string and numeric representations.
What changed
Corrected type handling as part of daily-activity input validation and parameter preparation.

Representation differences must be resolved before they reach transaction processing.

Daily activity processing, as documented
  1. Validate inputs and normalize values
  2. Separate time/expense and equipment activity
  3. Process the two activity branches
  4. Aggregate results into the response

Processing separates activity categories, runs the two branches, and returns an aggregate response. Transaction details and implementation code remain private.

04 / Operational handover

Leave the operating knowledge behind.

The implementation record connects functional coverage to the details needed to understand and maintain the integration.

Functional coverage
Completed process inventory, routing responsibilities, and operation-level purpose.
Business processing
Transformation behavior, critical parameter corrections, and resolved business-rule issues.
Access & boundaries
Authentication approach, external-access boundary, and configuration ownership.
Operations
Execution history, error and performance monitoring, alert categories, and maintenance cadence.

Move forward with TMG

Bring us the
business objective.

We will lead the technology work behind it.

Discuss an engagement