
PHASI is web-based project planning software for Engineering-to-Order and complex technical projects. It connects product structures (PBS), relevant work phases (WBS work layers), and timeline planning in one model.
A startup from Germany, founded by Yevgen Yeshchenko.
This page is designed to help you find out whether PHASI is good and if it is the right choice for you.
PHASI – Structure- and Phase-Based Project Planning for Engineering-to-Order
PHASI is a web-based project planning and control platform designed for complex engineering projects, particularly custom machinery, industrial equipment manufacturing, and Engineering-to-Order (ETO) environments.
Unlike conventional task-based project management tools, PHASI uses the Product Breakdown Structure (PBS) as the foundation of project planning, connecting each component, assembly, and deliverable with its relevant work phases.
Engineering, Procurement, Manufacturing, Assembly, Software Development, Testing, and other activities are assigned directly to the corresponding product elements and scheduled on a shared, interactive timeline.
Each component follows only the work phases relevant to it. Teams can define reusable work categories and review activities across different disciplines without reorganizing the underlying product structure.
A key capability is Calculated Percent of Completion (PoC). PHASI derives progress from completed phase bars and configurable category weights. Completion values are aggregated through the product hierarchy, providing traceable progress information at component, assembly, and overall project levels.
Instead of relying exclusively on manually estimated progress percentages, project teams can review how completion is calculated and which work phases remain unfinished.
Additional capabilities include contextual discussions attached to specific timeline phases, project communication, selected updates shared through Email, Slack, or Microsoft Teams, project history snapshots, and employee time tracking.
PHASI provides a focused planning and project-controls layer for engineering teams. It complements existing ERP, PLM, and CAD environments rather than replacing them.
Visitors can try the interactive phase planning interface directly at phasi.app, without registration.
Listed in
PBS + WBS Integration
Connect product structures and work phases in one unified project planning environment.
Product-Based Project Structure
Organize machines, assemblies, components, deliverables, and work packages in a hierarchical structure.
Interactive Project Timeline
Schedule, move, and resize work phases directly on a visual timeline.
Customizable Work Phases
Define reusable categories for Engineering, Procurement, Manufacturing, Assembly, Software Development, and Testing.
Calculated Percent of Completion (PoC)
Automatically calculate project progress based on completed work phases and configurable category weights.
Hierarchical Progress Tracking
Aggregate completion values from individual components through assemblies to the overall project.
WBS Work Layers
View and manage work across different disciplines without changing the underlying product structure.
Contextual Project Discussions
Attach comments, questions, and decisions directly to specific work phases and project items.
Integrated Time Tracking
Record employee working hours directly within the project timeline.
Team Collaboration
Coordinate engineering teams through a shared planning workspace and project communication tools.
PHASI – A Product-Oriented Approach to Engineering Project Management
PHASI stands out through its structure- and phase-based approach to complex Engineering-to-Order (ETO) projects, custom machinery, and industrial equipment manufacturing.
Unlike traditional task-based project management tools, PHASI connects the Product Breakdown Structure (PBS) with Work Breakdown Structure (WBS) activities in a unified, interactive planning environment.
Key Differentiators:
What makes PHASI different?
PHASI connects what is being built, what work needs to be completed, when it is scheduled, and how much of the project is finished – all within one specialized planning environment.
Visitors can also try PHASI's interactive planning interface directly at phasi.app, without registration.
PHASI is specifically designed for engineering and manufacturing companies managing complex Engineering-to-Order (ETO) projects, custom machinery, and industrial equipment manufacturing.
Unlike general-purpose project management tools that primarily focus on tasks and deadlines, PHASI provides a product-oriented planning approach that connects technical product structures, work phases, schedules, and project progress in one environment.
Key Reasons to Choose PHASI:
The PHASI Advantage
PHASI helps engineering teams answer four essential questions:
By connecting these aspects in a single planning environment, PHASI provides a structured and transparent approach to managing complex engineering projects.
Try Before You Decide
PHASI offers an interactive demonstration directly on its website, allowing visitors to experience its planning approach without registration or software installation.
PHASI – Designed for Engineering and Manufacturing Professionals
PHASI is primarily designed for engineering and manufacturing companies managing complex technical projects, particularly in Engineering-to-Order (ETO), custom machinery, special-purpose machine building, and industrial equipment manufacturing.
The platform is suitable for small, medium-sized, and large organizations that require structured, product-oriented project planning and transparent progress tracking.
Primary Target Audience:
Ideal Use Cases:
PHASI is particularly valuable for companies where engineering, procurement, manufacturing, and assembly activities must be coordinated around a shared product structure.
By connecting Product Breakdown Structures (PBS) with Work Breakdown Structure (WBS) activities, PHASI helps cross-functional engineering teams plan technical projects and maintain a consistent overview of schedules and progress.
PHASI was born from many years of hands-on engineering experience and a problem I encountered repeatedly in real-world projects.
Throughout my career as a design and development engineer, as well as leading engineering teams and complex technical projects, I experienced firsthand the challenges of planning and managing Engineering-to-Order (ETO) projects.
One particular challenge stood out: the lack of suitable software that effectively connects the Product Breakdown Structure (PBS) with the Work Breakdown Structure (WBS).
In engineering projects, what needs to be done is directly related to what is being built. Yet traditional project management tools often treat product structures and work activities as separate elements. This disconnect makes planning, coordination, and progress tracking unnecessarily complicated, especially in custom machinery and industrial equipment manufacturing.
After years of working with these limitations, I decided to develop the solution I had been looking for myself.
That is how PHASI was created.
The central idea was simple: bring product structures, work phases, schedules, and calculated project progress together in one intuitive planning environment.
PHASI is the result of extensive practical experience in engineering, product development, team leadership, and technical project management. It was developed to address real challenges faced by engineering teams, providing a structured, product-oriented approach to planning and managing complex technical projects.
PHASI was built from engineering experience, for engineering teams.
PHASI is built with TypeScript, React, and Vite on the frontend, and Node.js with Express on the backend. It uses PostgreSQL for data storage, Redis and WebSockets for real-time updates, and Docker, Caddy, and Cloudflare for deployment and HTTPS delivery.
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Check the traffic stats of PHASI on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of PHASI on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of PHASI's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of PHASI on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
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