Data modernization advisory

Modernize inherited data estates without pretending they started clean.

I help data and technology leaders turn inherited complexity into a defensible modernization path. The work starts with the decision that is blocked, then moves through current-state evidence, architecture options, and delivery support where needed.

Gosta Bostrom — former consulting partner and principal architect. 18+ years across data strategy, architecture, BI modernization, delivery leadership, and executive advisory.

The starting point

Modernization rarely starts from a clean slate.

Most teams inherit platforms, reports, pipelines, ownership gaps, and business logic that evolved over years. Before choosing a target architecture, leaders need a clearer view of what exists, what still matters, what depends on what, and where risk is hiding.

The estate is larger than the roadmap assumes.

Reports, pipelines, jobs, models, SQL logic, notebooks, and manual workarounds have accumulated for years.

Dependencies are partly known and partly folklore.

Teams know the critical outputs, but not always the upstream packages, stored procedures, jobs, semantic models, or ownership gaps behind them.

Platform decisions get made with weak evidence.

Without a clearer current-state view, modernization becomes a debate about whether to migrate, rebuild, retire, consolidate, or leave things alone.

AI-ready architecture depends on old reality.

Databricks, Fabric, Power BI, Snowflake, dbt, and AI initiatives all run into the same inherited complexity if the foundations stay unclear.

How we assess

Separate what is known from what still needs to be tested.

The method maps the current estate, records the strength and limits of the evidence, compares practical options, and turns the findings into a decision-ready action plan.

See how the assessment method works
Decision
Current-state evidence
Confidence and caveats
Practical options
Next action

Services

Match the help to the work in front of you.

A focused assessment, architecture engagement, roadmap, or fractional leadership role can stand alone or provide continuity through delivery.

Explore services and engagement options

Estate Review

Clarify what exists, what matters, where evidence is thin, and which risks need investigation.

Platform Architecture

Shape practical architecture options for BI, cloud data platforms, semantic layers, governance, and AI-ready foundations.

Modernization Roadmap

Connect evidence and architecture choices to sequencing, funding, delivery capacity, and partner scope.

Fractional Leadership

Add senior architecture and delivery judgment when the team needs continuity beyond a short assessment.

Modernization assessments

Understand the inherited estate before committing to the target.

For legacy Microsoft BI estates, TangleMap is the current named accelerator inside an evidence-led assessment. It speeds discovery; consultant judgment still shapes the conclusion.

What the assessment adds

  • Inventory across SQL Server, SSRS, SSIS, SSAS, and SQL Agent estates
  • Dependency evidence with coverage and confidence gaps visible
  • Complexity, warning, and modernization-path inputs for consultant review

What we build next

Define the data product before building another bespoke pipeline.

NextState is the temporary working name for NextState Data's data-control-plane project, now in private Open Core development. It separates the product a team needs from the loaders, transformations, checks, publication scripts, and recovery procedures used to operate it.

  1. 01
    DefineMeaning and policy
  2. 02
    PlanAffected scope
  3. 03
    BuildHidden candidate
  4. 04
    VerifyEvidence and consequences
  5. 05
    PublishControlled visibility
  6. 06
    RecoverLast-known-good

Why NextState

Senior judgment grounded in strategy, architecture, and delivery.

The work is grounded in 18+ years across data strategy, enterprise architecture, BI modernization, governed analytics, delivery leadership, and executive advisory.

About the practitioner

Modernization roadmap

Telecom and media modernization

Led analytics modernization across a multi-brand environment supporting roughly 800 analytics and reporting users and data related to millions of customers.

Trusted reporting

Compliance-sensitive reporting

Improved trusted reporting and data quality in a large partner ecosystem where governance and confidence mattered as much as tooling.

Delivery leadership

Reusable platform delivery

Designed reusable data platform, governance, and delivery accelerators across client environments.

Start here

Start with the decision or delivery gap that needs senior help.

A short conversation can usually tell whether the useful next step is an assessment, architecture review, fractional leadership role, or focused delivery support.

Start with an assessment