No organization can function without data. However, there is not much that can be done with data alone.
Data needs to be collected, processed, organized, stored properly and made accessible. This is no easy task. Very few organizations can handle this task on their own. This is where data warehouse consultants come in. They provide you with the skills you lack. They build systems for your business and make data actionable.
This guide will introduce you to the world of data warehouse consultants, explain their importance, and tell you how to find the best consultant for you.
What Is a Data Warehouse?
The data warehouse serves as the hub for all business data. This data comes from CRM, ERP, and the applications you use. Everything is brought together in one place. Neat, organized, and easily accessible.
It’s more than just data storage; it’s a complete system designed for analysis and decision-making. A properly structured data warehouse helps everyone, including finance, sales, operations, and marketing teams, see things from the same perspective.
What Do Data Warehouse Consultants Do?
Data warehouse consultants have a variety of roles. Some specialize in just design. Some handle the entire build. The best consultants handle both. Data warehouse consultants play these roles throughout the project.
1. Data Integration
Your data comes from a variety of sources—for example, CRM applications, ERP software, IoT sensors, and third-party applications.
Bringing all of this together can be quite difficult. That’s the job of data warehouse consultants. They build ETL pipelines. The full form of ETL is Extract, Transform, Load.
They extract data from all possible sources. They cleanse the data. They load the data into your warehouse on a schedule, which can be scheduled or real-time. Cleansed data is entered, and cleansed data is output—every time.
2. Data Cleansing
Raw data is always messy – fields are missing, values are wrong, formats don’t match, duplicate data appears, etc.
Data warehouse consultants sort it all out. They apply data-cleaning rules. They run validation tests. They remove duplicate data. They fix the data before it reaches your report.
If you skip this step, everything will be presented incorrectly in your report. Your team will make decisions based on incorrect information.
3. Data Modeling
Your data modeling determines your entire data warehouse. If you don’t do it right, it will be very ineffective.
Data warehouse consultants create data models for your warehouse. They determine how your data will be organized, how it will be related to each other, and how it will be accessed.
An effective data model can process queries quickly. It can handle complex analytics, and it will remain manageable no matter how much your data grows.
This requires skill and knowledge. This is one of the most important jobs of data warehouse consultants.
4. Performance Optimization
Your data warehouse is working fine. Yet it starts to slow down, queries slow down, reporting slows down. Users get frustrated.
Data warehouse consultants help you solve this problem. They regularly monitor your system. They identify bottlenecks. They optimize slow queries. They tune your data pipelines.
The goal is to build a system that stays fast. Even when the amount of data increases. Even when more users run their reports simultaneously.
5. Scalability Planning
Your company is growing. Your data is also growing. A data warehouse designed for today needs to be ready for the future. And data warehouse consultants plan for that from day one.
They build systems that can be expanded as needed without a complete overhaul. What if the data grows? No problem. What if the users grow? No fear of slowdown. What if additional data sources are added? No disruption. This is most important for companies that grow rapidly and enter new markets.
6. Faster Analytics
Older systems were slow. Querying the database took minutes. Sometimes more.
This is where data warehouse consultants come in. They use tools like parallel processing and columnar databases. Now your database can analyze large amounts of data much more quickly. What used to take you an hour now takes seconds.
7. Better Collaboration
When data is fragmented, problems arise. Different teams have different figures. The information becomes inconsistent. This delays decision-making.
Data warehouse consultants solve this problem. They bring all your data together. Now all teams use the same information. Be it finance, sales, or operations. They all work from one source.
This builds trust. Conflicts are eliminated because there is no more arguing about whose report is correct. Everyone works together towards a common goal.
8. Security and Compliance
This data is sensitive in nature, such as customer databases, financial information, employee details, and contract details.
Data warehouse consultants design the system with security in mind from the very beginning. It is not something that is added later.
They design the system using role-based access controls. It is protected for those authorized to access the system. They use encryption and audit trails. They ensure that your system complies with GDPR, CCPA, HIPAA, and other laws.
9. Deployment and Testing
Building a data warehouse is one thing, and taking it live is another. A warehouse consultant handles all of the above: hardware and software installation, ETL creation, and data migration.
Before any system goes live, they do thorough testing. They run reports and make sure that the data matches the information in the source system.
Going live without testing for any issues is worse than going live late. A good data warehouse consultant does not skip this step.
10. Training and Support
The data warehouse is up and running, and now it’s time for your team to start using it. A good data warehouse consulting firm will train your team to create reports, manage the database, and identify data issues.
Your team may then have more questions, and you will need good data warehouse consultants to help you resolve them.
Why Your Business Needs a Data Warehouse Consultant
This can be done internally. Many companies have done it. The problem is, they all have the same problems. It’s too slow. The system is implemented incorrectly. The data is flawed. The employees don’t understand how to use it.
Data warehouse consultants have faced this kind of situation. They have seen it happen many times in different industries. They know what goes wrong and they avoid it.
Also, they bring some skills that cannot be acquired quickly. For example: ETL skills, data modeling skills, platform knowledge, tuning skills.
For most companies, it is faster and cheaper to hire a data warehouse consultant than to develop these skills in-house.
Signs You Need Data Warehouse Consultants Now
Is it time to take action? Here are some things to watch out for:
- Teams are arguing over data. Two different numbers in two different reports.
- Reports are taking too long to generate. It’s taking days to get an answer to a simple query.
- Your data is scattered around, Incorrect information, Duplicate data, and Incomplete fields.
- Moving to the cloud. This process requires professional help.
- Rapid growth, New tools, More data- Legacy systems can’t handle it anymore.
- AI isn’t performing as expected. This is because the data quality is poor.
Are two or more of these symptoms present? Data warehouse consultants are the solution.
How ExistBI Can Help
ExistBI is one of the premier providers of data warehouse consulting services worldwide. Since 2008, the company’s professionals have assisted hundreds of organizations in getting their data right.
ExistBI’s data warehouse consultants fill all of the positions mentioned above – data integration, data cleansing, data modeling, performance tuning, scalability, security, compliance, deployment, training, and continuous support. They support all of the major platforms.
Their offices are located in Los Angeles, Jersey City, Washington DC, London, Berlin, Denver, Cleveland, and Zagreb. The company serves the United States, the United Kingdom, Canada, and EMEA. Previous customers include NASA, Pfizer, Nike, Costco, Sony, US Bank, Johns Hopkins, Johnson & Johnson, Northrop Grumman, John Deere, and Princeton University.
ExistBI is not platform-specific. The company’s data warehouse consultants use whatever is best for you, not for them.
